CHRONIC Pelvic
Pain
PAIN IS NEVER NORMAL
MENSTRUAL
CRAMPS ARE NEVER NORMAL
PAINFUL
INTERCOURSE IS NEVER NORMAL
PELVIC
PAIN IS NEVER NORMAL
CHRONIC
PELVIC PAIN IS NEVER "IN YOUR HEAD"
BUT
STRESS
& DEPRESSION MAKES PAIN WORSE
ACUTE PAIN IS A SYMPTOM OF DISEASE
CHRONIC PAIN IS ITSELF A DISEASE
CHRONIC PAIN IS LIKE A DEFECTIVE FIRE ALARM –
IT KEEPS SENDING A “SIGNAL” EVEN WHEN THERE IS NOTHING APPARENTLY WRONG
PAIN
OVERVIEW
Twenty years ago, I would
have told you that I knew everything there was to know about pelvic pain. Ten
years ago, I would have told you that no one knew anything about pelvic pain.
Today, I can tell you that we have learned a lot in the last few years. There
is still a great deal to be learned. However, some major breakthroughs in our
understanding of how the nervous system works has shed incredible light on
previously poorly understood diseases.
Chronic pelvic pain is
defined as either constant pain of three months duration or intermittent pain
of six months duration. Pelvic pain is defined as pain anywhere from around
your waist down to the level of the mid thigh regardless of whether it is in
the front, in the back, in the sides, or any combination of these locations.
One of the problems in
dealing with chronic pelvic pain relates to the old fable of the three blind
men and the elephant. If you have forgotten it, three blind men come across
an elephant. One grabs the trunk, the second grabs its tail and the third
grabs a leg. Each man can only describe the elephant by the part he is
holding. None of them can step back and view the entire animal.
For many years, people’s
knowledge and understanding of chronic pelvic pain was limited by the fact
that how you were diagnosed often depended upon which physician you saw
first. If you were to see a gynecologist first, you would be told you have
endometriosis or some other reproductive abnormality.
If you saw a urologist first,
you would be told you have interstitial cystitis or painful bladder syndrome
or some other term.
If you saw a
gastroenterologist first, you would be told you have irritable bowel syndrome.
The fact of the matter is
that when one part of your pelvis starts to hurt, eventually many things start
to hurt. We may compartmentalize our diagnosis and treatment but to a certain
degree this is artificial. Always keep in mind that most women with chronic
pelvic pain have multiple reasons for their pain - we call these “pain
generators”.
Also keep in mind that
studies have clearly shown that women who suffer from chronic pelvic pain have
a reproductive tract disease as the principal cause of their pain in only 20%
of cases! This becomes all the more important when you stop to realize that
most women with pelvic pain are going to end up in a gynecology office first.
There is a very high probability that they will undergo a laparoscopy and they
very likely will be told they have endometriosis. Endometriosis is the most
common pelvic disease associated with chronic pelvic pain. Studies have
clearly shown that about 75% of women with chronic pelvic pain have
endometriosis.
Always keep in mind that just
because you have endometriosis does not automatically mean that is the cause
of your pain. Failure to understand that women with chronic pain have
multiple pain generators often leads to repetitive treatments for
endometriosis that may or may not address the true cause of the pain.
The principal causes of
chronic pelvic pain are: endometriosis and other reproductive tract diseases
such as chronic pelvic inflammatory disease; interstitial cystitis; vulvodynia
and vulvar vestibulitis; irritable bowel syndrome; pelvic muscle pain;
hernias; and abdominal wall trigger points.
Another major cause of pain
is what we call neuropathic pain. It is our increased understanding of
neuropathic pain that has allowed us to begin to unravel the mystery of
chronic pelvic pain specifically and other chronic pain syndromes in general.
Neuropathic pain is explained
in greater detail in the full pamphlet. However, it is important that you
understand that in cases of neuropathic pain, the spinal cord itself becomes
another pain generator.
Perhaps this is nowhere
better illustrated than in the case of the so-called “phantom limb syndrome”.
For various reasons, people may undergo an amputation of their leg. This is
frequently related to complications of diabetes. Diabetics very frequently
have neuropathies and may suffer from pain as a result. The pain itself is
not the reason for the amputation - usually gangrene with uncontrollable
infection is the cause.
Nonetheless, after the leg is
amputated, it is not rare for the person to still “feel” the leg as if it were
still there, often with pain. This is because of the neuropathic pain
situation that has been created by long-standing chronic pain.
Another example of this
involves the woman who has had an ovary taken out because she has pain on that
side. Very frequently, she will complain that she still has exactly the same
pain as if the ovary were still there. Since we now have a better
understanding of what is going on, it allows us to counsel women that just
because they may have pain on one side or the other, taking out that ovary is
probably not going to relieve the pain.
Our understanding of
neuropathic pain has also allowed us to understand the usefulness of many
drugs that specifically target the nervous system rather than the “disease”.
Perhaps the classic example of this is interstitial cystitis. We now
recognize that in fact there is nothing intrinsically wrong with the bladder.
The real problem with interstitial cystitis is neuropathic pain which
sensitizes the bladder to normal stimuli. As a result, things that don’t
bother “normal” people bother people with interstitial cystitis considerably.
The full pamphlet that
follows goes into each of these issues in much greater detail. However, it is
my hope that, by giving you this brief overview, you have a better
understanding of what is going on and the reasons for how we approach your
problems and how we try to deal with them.
INTRODUCTION
Thirty million Americans live their life in
chronic pain. One in every 7 women suffers from Chronic Pelvic Pain! At any
one time, 12% of people in this country will report that they have chronic
pain. One-third of all people will report that at sometime in their past they
have had chronic pain. The evaluation and treatment of these people has,
until recently, been one of the most neglected areas in medicine for a variety
of reasons. First, until relatively recently, pain management was not a part
of most physician’s training. Everyone knew about treating someone following
surgery. The management of patients with long-term chronic pain was not well
addressed.
There are a number of reasons
for this. It is not that physicians don’t care. Part of the problem stems
from what was our relatively poor understanding as to the causes of chronic
pain. Recent discoveries in the way our nervous system functions have given
great insight into some of these issues.
When I say that we don’t
always understand the causes of pain, what I am really saying is that just
because someone has an obvious problem such as endometriosis, it does not
automatically mean that that is the cause of their pain. It is critically
important to avoid falling into such a trap.
One of the reasons that
chronic pain has not been managed as well as it should is physician fear.
Until relatively recently (and it is still be true in some cases), physicians
in some states actually lost their license to practice medicine because they
were giving narcotics to patients with non-terminal illnesses. More recently,
the Drug Enforcement Administration (DEA) issued a warning to physicians that
they were going to look very carefully at physicians’ prescribing habits when
it came to narcotics. This has to send a chilling effect throughout the
country. This is despite the fact that the law specifically states that
physicians should be able to prescribe narcotics when appropriate without fear
of penalty.
The California board of
medical licensure censured a physician because all that doctor would give a
patient who was dying of cancer was Tylenol! If this is the way some
physicians still think, imagine how people with non-terminal illnesses are
treated. Undertreatment of pain is still a significant problem. I recently
heard of a story of a GYN who calls himself an expert in endometriosis and yet
sends his patients with chronic pain to a pain clinic. With all due respect,
pain clinics are great for back pain and related problems — they do not do a
very good job with pelvic pain.
In addition, there is also
the physician fear (misplaced) that prescribing narcotics to patients with
chronic pain will create a drug addict. In fact, this is uncommon. The vast
majority of patients who are taking narcotics for chronic pain want
desperately to be off them. They are not taking them for the same reason that
a drug addict takes them. It has been estimated that perhaps only 5% of
patients taking narcotics for chronic pain becomes addicted, using the strict
psychiatric definition of the term. My own personal experience is that it is
much less.
Another obstacle in the way
of patients getting adequate pain relief are the many governmental and
insurance company restrictions imposed on physicians in the prescribing of
pain medication. Not only do I have to have a DEA license, I am forbidden to
call in a prescription to a pharmacy for the more potent painkillers such as
Percocet. The prescriptions must be in writing. I can phone in a
prescription for drugs such as Vicodin or Tylenol with Codeine. While here is
some justification for this, it does make it more difficult, particularly in
an emergency situation.
More recently, insurance
companies are making it more difficult for patients to get the medications
they need by limiting the number of days of a drug that you can receive. For
some insurances, such as Keystone, I can prescribe no more than a one month
supply. The patient must then come back to my office for a refill. For
patients on long-term medication, this is ridiculous. All it does is drive up
the cost of health care and there is really no justification for it. I
believe it is being done in the name of insurance company profit because when
you examine the facts carefully, it doesn’t make any sense and probably ends
up costing them more money.
I believe a lot of the
restrictions are imposed by politicians who are trying to convince the voters
that they are doing something meaningful to control illegal drugs. The fact
is that the drug problem in our country has very little to do with physicians
but we are a visible symbol and therefore become a target. Most of it is
nothing more than political grandstanding and I cite the following example.
I have patients who come to
me from New York State. If I write out a narcotic prescription for them, they
cannot take that prescription back to New York to have it filled. In order to
fill a narcotic prescription in New York, it must be written by a physician
who is licensed in New York and it must be written on a special New York State
narcotic prescription which is in triplicate. This regulation was imposed
supposedly to control the diversion of narcotics into the hands of the drug
dealers. It is effective? Absolutely not.
Several years ago, I was at a
conference and heard a physician who deals a lot with pain management in
cancer patients talk about this issue. The simple fact of the matter is that
the street price of drugs such as Percocet in New York has not gone up one
bit. In other words, the supply is still plentiful. All of these extra
burdens imposed upon physicians and patients have not done one single thing to
restrict the flow of illegal drugs but a lot of politicians got a lot of
publicity trying to convince their constituents that they are doing something
beneficial for society. So what else is new.
Everyone is familiar with the
four standard “vital signs” - temperature, pulse, respiration rate, and blood
pressure. Many people now feel that the assessment of pain should also be
included as an important vital sign, especially for patients in the hospital.
If someone with chronic pain undergoes surgery, it is critically important to
make sure they have adequate pain meds after the surgery or their problem may
actually worsen.
If you are suffering from
chronic pain, I hope that this information does not depress you too much.
However, I want you to be fully aware of some of the problems that we all face
in attempting to help you get the relief you require.
CHRONIC PELVIC PAIN
Chronic pelvic pain is defined as either constant
pain of at least 3 months duration or intermittent pain of 6 months duration.
A woman is said to have a “Chronic Pelvic Pain
Syndrome” if she has chronic pelvic pain and she also has 1) – Incomplete
relief with prior therapy; 2) – Pain out of proportion to the amount of
visible disease or other objective findings; 3)- Psycho-social impairment
(i.e., the pain interferes with other aspects of her life) and or 4)- There is
multi-organ involvement. I can tell you that the vast majority of patients I
see with Chronic Pelvic Pain have multiple causes for their pain.
As I will tell you over and over again, and as I
have mentioned in other pamphlets, the most important thing in medicine is to
make the right diagnosis. Although chronic pain does become a disease in and
of itself, it is critically important to search for the causes of that pain.
To the degree that the various causes can be identified and specifically
treated, the entire problem can be more effectively dealt with.
It is also critically important for women who
suffer from chronic pelvic pain to understand that the pain is primarily the
result of reproductive tract disease only 20% of the time. The remainder of
the cases involve pain originating in either the gastrointestinal tract, the
urinary tract, the abdominal wall, the low back, or the pelvic muscles. Also,
as I have mentioned, for the majority of women with chronic pain, they have
more than one source for their pain (we call these “pain generators”).
Nonetheless, because of our knowledge and
training, gynecologists are the most ideally suited physicians to diagnose the
various causes of chronic pelvic pain and, in the majority of instances, we
are also the best suited to treat those causes unless a significant problem is
encountered in another organ system.
It is critically important, as will be discussed
in greater detail later in this pamphlet, that you understand the following:
namely, that in women, pain very often follows the menstrual cycle regardless
of its cause. This is almost certainly due to the effect of the various
hormones, especially estrogen and progesterone, on the nervous system
affecting the way your body processes and perceives pain.
As a general rule, pain will be at its lowest
right after your period has ended and it will worsen during the second half of
the menstrual cycle following ovulation. The pain will usually be at its
worst when you are premenstrual and during the first few days of your flow.
Therefore, it is critically important that you always keep in mind that just
because pain in the pelvis waxes and wanes with your menstrual cycle, it does
not automatically mean you have endometriosis although that is the most common
disease associated with chronic pelvic pain. (Notice I did not say that it is
always the cause of chronic pelvic pain).
It is because of this effect of the various
hormones on your body’s perception of pain that drugs such as Lupron will
often relieve the pain. Because of this, many people assume that just because
the pain goes away with Lupron, it must be endometriosis. This is not true.
Many other causes of chronic pelvic pain will also improve on Depo Lupron
therapy.
The same is true for any therapy that interrupts
your normal menstrual cycle. Drugs such as continuous oral contraceptives,
continuous Aygestin, continuous Provera, etc. may also have a significant
beneficial effect on pelvic pain simply because they stop the cycling of the
hormones and, therefore, any premenstrual accentuation of the pain will be
eliminated or dramatically reduced.
Because of this, any disease a woman may have
that causes her pain, etc. will very often wax and wane with her menstrual
cycle, especially if that disease is accompanied by pain such as Rheumatoid
Arthritis.
It is very important not to fall into the trap of
concluding that just because a woman’s pain worsens with her menstrual cycle,
it is due to Endometriosis or some other GYN disease.
12% of hysterectomies are done for chronic pain
which adds up to about 70,000 hysterectomies a year. Of those women who
undergo a hysterectomy for chronic pain, 25% will continue to have pain
following the surgery. It will be less if women are properly selected.
PATHOPHYSIOLOGY OF CHRONIC PAIN
The term physiology
refers to the normal functioning of a given body organ or system. The term
pathophysiology refers to what happens to that organ or body system in a
disease state. There have been some significant changes in our understanding
of the way the nervous system works and this has given us much much better
insight as to what is going on in patients with chronic pain, especially women
with chronic pelvic pain. As I said on the first page of this pamphlet,
chronic pain is a disease and we are now beginning to understand exactly why.
When I was in medical school,
I learned there were two main parts to the nervous system - the somatic
nervous system and the autonomic nervous system. Each of these is further
subdivided into the motor part and the sensory part.
The somatic nervous system
deals with the skin, muscles, bones, joints, ligaments, and related organs.
The autonomic nervous system
(sometimes referred to as the “involuntary” nervous system) deals with your
internal organs such as the heart, lungs, intestines, bladder, uterus, etc.
The motor part of each system
sends signals from your brain to various parts of the body telling your
muscles to do something or your intestinal tract to do something, etc. The
sensory part of the nervous system sends a signal back to the brain from the
various organs and tells you whether you are in pain, whether you feel heat,
or cold, or whatever sensation you may be experiencing. It also provides
feedback so the brain knows that your various systems are functioning
normally.
Most importantly, I learned
in medical school that the various nerves can only send their signals in one
direction. Motor nerves send their message from the brain or spinal cord to
various organs. Sensory nerves send signals from various organs to the spinal
cord and brain. We now know this is not the case. Recognizing this has led
to greater understanding of chronic pain. It also allows us to understand
what is causing the pain and how to treat it better.
When you experience a
sensation of any kind, a signal is transmitted up the sensory nerve into the
spinal cord. That sensory nerve then interacts with other nerves and centers
in the spinal cord that relay the signal up into the brain. In the spinal
cord, there are various modulators (chemicals) that help control the intensity
of the pain signal that is transmitted to your brain. It has recently been
discovered that when someone is in chronic pain, these relay and controlling
centers in the spinal cord become permanently “turned on”. They become
self-perpetuating. This is termed “centralization” and the centers in the
cord are said to be “up regulated”.
It has also been recently
learned, contrary to what I was taught in medical school, that when these
relay centers are up regulated, they will actually send signals back down the
sensory nerves into the pelvis. As a result, the organs in which the sensory
nerves originate become supersensitive to normal stimuli. It then becomes a
self-perpetuating process. Sometimes the pain that results from these other
supersensitized organs is worse than the initial pain that started the entire
process.
This process occurs in all
types of chronic pain syndromes. Because of this, the term “Complex Regional
Pain Syndrome” has been created. Chronic nerve injuries that used to be
called “Causalgia” was next called “Reflex Sympathetic Dystrophy” and we now
realize that it one of these Complex Regional Pain Syndromes. Migraine
headaches probably also fall into this category.
Supersensitivity to normal
stimuli is now being increasingly recognized as a very common problem in the
world of chronic pain and related syndromes. Gastroenterologists have
realized for years that the Irritable Bowel Syndrome (IBS) is in fact a
disease of supersensitivity. People who suffer from IBS have intestinal tracts
that react in an exaggerated fashion to normal stimuli such as distention from
either gas or stool. Normal people have what is termed the “Gastro-Colic
Reflex”. When you eat, not too long thereafter, you feel the need to move
your bowels. In people with IBS, this reflex is exaggerated. As soon as they
eat, they feel a severe urge to run to the bathroom.
One of the most classic
examples of this type of problem is so-called “Interstitial Cystitis”. I will
discuss this more extensively in another section of the pamphlet. However,
let me just mention here that IC is now believed to be simply part and parcel
of an overall complex chronic pelvic pain syndrome with a bladder that has
become supersensitized to normal stimuli as a result of the reversal of the
flow of sensory information down the pain nerves.
Nerves from the body enter
the spinal cord at each level between the spinal vertebrae. Not only are the
nerves in the spinal cord affected at the level at which the pain nerves enter
the cord, this process of up regulation can also affect spinal segments two or
three levels higher than the original site of the input. This is one of the
reasons why people will notice that, over time, the area that hurts gets
larger and larger. Control centers at the higher levels also get turned on
and start producing pain signals.
As the chronic pain persists,
other defense mechanisms are also brought into play, specifically an increase
in tension in the pelvic muscles. More often than not, women with chronic
pelvic pain will have very tender, very tense pelvic muscles.
As the pelvic muscles hurt,
then often the woman does not walk properly. Her abdominal muscles then begin
to hurt and then her back will hurt. Very often people with chronic pain will
develop what we call trigger points. Trigger points are isolated tiny areas
of spasm in a muscle that also begin to hurt. This becomes another source of
pain.
If the woman has had surgery,
her incisions may also serve as sources of pain, particularly if she has
developed a small hernia in one of those incisions. Again, newer information
indicates that there are far more incisional hernias than we had previously
appreciated, even in incisions that we normally do not associate with hernias
such a the low transverse incision so commonly used for hysterectomies or
cesarean sections. While vertical incisions are notorious for developing
hernias, we are now becoming aware that transverse incisions will develop
hernias far more frequently than we had previously believed to be the case.
In addition, especially if
the woman has had a laparoscopy (as almost every women with chronic pain will
have had), insertion of the laparoscopic ports may very often damage a nerve
in the abdominal wall. That damaged nerve can then become a source of pain.
We call these various sources
of pain “pain generators”. Each one contributes to the sensory input into the
spinal cord and each one adds fuel to the fire in terms of up regulating the
control areas in the spinal cord. It is not rare (in fact it is probably the
rule) for women with chronic pelvic pain to have multiple pain generators.
Very often the original problem that caused the pain in the first place is no
longer the issue. It is the multiple pain generators that they have developed
afterwards that keeps the problem going.
10-15 years ago, I would have
told my patients that I knew everything there was to know about pelvic pain.
Later, I would have told you that no one knows anything about pelvic pain.
Today, because of newer information, we have a much better understanding of
what is going on. However, it is still a very complex and often very
challenging problem to deal with. Sometimes we can diagnose the problem —
sometimes we can’t. Even if a laparoscopy shows a problem such as
Endometriosis, it does not always mean that is the cause of the pain.
Sometimes we are lucky and the woman’s pain is completely relieved.
Sometimes, despite every treatment imaginable, the pain persists. It is
frustrating.
If chronic pain is the
stepchild of American medicine, chronic pelvic pain is an orphan. Millions of
Americans live their lives in chronic pain from various injuries or
illnesses. For a number of reasons which I can discuss with you in the
office, many people with chronic pain are simply not treated properly.
Women with chronic pelvic
pain often fare even worse. They have not been obviously injured and they
often do not have diseases that would account for their pain. To be sure,
almost all have other problems such as Endometriosis but the severity of the
pain is often far out of proportion to the severity of the disease. As a
result, these women have a great deal of difficulty getting their complaints
taken seriously.
There is still a significant
bias in the medical profession that women with pelvic pain are crazy until
proven otherwise. Because a proper and accurate diagnosis is often not made,
women with chronic pelvic pain are subjected to numerous surgeries and other
therapies, often without success. Many end up having a hysterectomy and are
in just as much pain after as they were before.
The three most common reasons
that women seek GYN care are a vaginal discharge, bleeding abnormalities, and
pain. Dealing with the first two is usually relatively simple and
straightforward.
Pelvic pain was, and still
is, principally the province of gynecologists. Although most pelvic pain is
of GYN origin, there are a significant number of women whose pelvic pain is
arising from some other source. Much of the misunderstanding arose from a
situation similar to the parable of the three blind men and the elephant. One
had a hold of the trunk, one had a hold of the leg, and the third had a hold
of the tail. Each described the elephant by the part he was holding. None of
them could step back and see the entire animal.
To a considerable degree,
what you are diagnosed with as the cause of your pain may be a function of
what type of physician you see first. If you see a Gynecologist, you will be
told you have Endometriosis or Chronic PID. If you see a Gastroenterologist,
you will be told you have Irritable Bowel Syndrome. If you see a Urologist,
you will be told you have Interstitial Cystitis or a Painful Bladder Syndrome.
If you have several rectal
pain and see a Proctologist or Colo-Rectal Surgeon, you will be told you have
Proctalgia Fugax. It’s the blind man and the elephant — your have to be able
to step back and view the entire problem, not focus on just one aspect of it.
What you must realize is that the pain you are feeling often has nothing to do
with the label you are given. What you must also realize is that all these
chronic pain syndromes are intertwined and are usually part of the same
overall complex pain syndrome.
Over the past decade or so,
we have come to realize the importance of a multi-disciplinary approach to the
woman with pelvic pain. As a result, we are now able to step back and see the
entire picture even though each specialty, as you might expect, tends to focus
on its own area of expertise.
What is becoming increasingly
apparent to those of us who deal extensively with chronic pelvic pain is that
many women have more than one problem. They may have started out with a
single cause; frequently, however, other organ systems become involved and,
without a multi-disciplinary approach, only a part of the problem is ever
addressed and treated.
There are many causes of
pelvic pain which I will mention briefly in this introduction. Each will be
discussed more extensively later in the pamphlet. Virtually every study has
shown that approximately 70% of women with chronic pelvic pain have
Endometriosis. The problem is this - and it has directly or indirectly
interfered with the proper diagnosis and management of pelvic pain - namely,
that just because a woman has Endometriosis does not mean that that is the
cause of her pain.
I have long believed (and
current evidence has proven me correct) that sometimes making the diagnosis of
Endometriosis is actually a disservice to the woman who is suffering from
chronic pelvic pain. Once a woman is labeled as having Endometriosis,
everything that happens to her from that point on is attributed to her
Endometriosis. Many women with Endometriosis have other reasons for their
pain and one must make a diligent search for those other reasons if you are
going to help them.
In some cases, the other
causes for her pelvic pain are indirectly related to the Endometriosis;
frequently, however, the other causes are completely independent of the
Endometriosis.
In addition to Endometriosis,
the other relatively common causes of chronic pelvic pain include Adenomyosis
(a first cousin to Endometriosis), pelvic damage from a previous infection,
and pelvic damage from previous pelvic surgery – especially “open” surgery.
One of the most common causes
of chronic pelvic pain is pain arising from the deep pelvic muscles and
ligaments. This is frequently referred to as “pelvic floor dysfunction” or a
pelvic myofascial pain syndrome. There is increasing evidence that this may
in fact be a localized variant of fibromyalgia.
Another fairly common cause
of chronic pelvic pain in women is a Spigelian hernia. Other hernias of the
abdominal wall such as an inguinal hernia are also not rare.
Intestinal problems may cause
chronic pelvic pain. However, most organic diseases of the intestinal tract
are fairly easy to diagnose. Such diseases include Ulcerative Colitis and
regional enteritis (Crohn’s disease).
Virtually every woman with
chronic pelvic pain has been told, at least once in her life, that she has an
irritable bowel syndrome (IBS), and to be fair, many do. This will be
discussed extensively later in the pamphlet.
The urinary tract can also be
a cause of chronic pelvic pain. Such conditions as the urethral syndrome and
interstitial cystitis must be at least thought of in the differential
diagnosis. We now have a much better understanding of them, how to diagnose
them, and how to treat them.
Chronic pelvic pain can also
arise from abnormalities in the lower back with pain radiating from the low
back into the lower abdomen. Again, such pain may be a primary back problem
or it may be secondary to other causes of pelvic pain such as Endometriosis.
The last topic which needs to
be mentioned is whether or not pelvic pain is of psychological origin. There
have been a number of papers showing a significantly increased incidence of
sexual abuse in women who complain of chronic pelvic pain. A more recent
study suggested that it was only women who had been abused as children who
manifested chronic pelvic pain later in life. Women who were abused for the
first time as adults did not seem to develop this type of problem. Much more
data needs to be accumulated.
I have tried to present in
this introduction a brief over view of the causes of chronic pelvic pain. The
remainder of the pamphlet will discuss each topic in greater detail.
One of the biggest hurdles
that women with chronic pelvic pain face is their never ending battle to get
their complaints taken seriously, not only from the physicians they see but
from the insurance companies who must pay for the care they require.
There are many ways to
categorize pain. One way is acute vs. chronic. Most of the causes of acute
pelvic pain are fairly easy to diagnose and the treatments are straightforward
and well defined. Some of the more common causes include ovarian cysts, tubal
pregnancies, bladder infections, and pelvic infections. The problem is
diagnosed, treatment rendered, and the problem is usually resolved in a
relatively short period of time.
Acute pain is usually due to
a single cause. However, by the time women with chronic pain are fully
evaluated, they frequently have multiple problems, each of which is
contributing something to their overall pain syndrome. In addition, the
severity and duration of the pain is such that the pain itself becomes as much
an issue as the problems which created it. This is why we say that chronic
pain is a disease in the same way as is the disease(s) which led to its
development.
PAIN AND
INFLAMMATION AND NEUROPATHIC PAIN
For those of you who are
interested in the specific details, I would like to offer a more involved
explanation as to what is going on. If you are not particularly interested,
you can skip this section.
When most people think of
inflammation, they think of the visible redness in the skin or joints that
accompanies an insect bite, a cut that may have gotten superficially infected,
severe arthritis, a rash, etc. However, the redness is only the visible
manifestation of an underlying inflammatory response to an injury of any
kind. The inflammation is mediated by numerous hormones and chemicals.
In today’s world, when a
physician talks about inflammation, he or she is often referring to the actual
biochemical inflammatory response that may or may not be manifest as visible
redness. We are now coming to recognize that inflammation play a major role
in many disease states. As we come to understand what inflammation is and how
we can assess it, we are also developing drugs that will specifically target
the inflammatory response.
For example, we now recognize
that atherosclerotic cardiovascular disease is, in large part, an inflammatory
disease. Atherosclerosis is the medical term for the deposition of fat in
your blood vessels, commonly referred to as “hardening of the arteries”. If
your blood vessels become to narrow as a result of this deposition of fat and
you then rupture the plaque in which the fat deposits have been placed, the
blood vessel becomes suddenly blocked and you have a heart attack or a
stroke. A great deal of evidence has accumulated in the past few years that
one of the key factors in promoting the deposition of the fat is inflammation.
We are now recognizing that
asthma is an inflammatory disease. Many allergic conditions are inflammatory
in nature and a whole host of other diseases are also considered to be, in not
primarily an inflammatory disease then ones in which inflammation plays a
major role. Such is the case of pain.
We are now able to identify
and in many instances measure the various hormones and chemicals in our blood
stream that are either markers of inflammation or may actually be the
substances that cause the inflammation. One of the more widely known is C-
Reactive Protein, commonly abbreviated as CRP. People with elevated CRP’s are
known to be at increased risk for heart attack, further evidence that
inflammation is in fact playing a role in heart disease.
As I previously noted, when
there is a constant flow of pain sensation into the spinal cord, there is a
prolonged release of various substances in the spinal cord that are involved
in what we call neuroregulation. If these painful sensations are long enough
and severe enough, the biochemical changes they produce in the spinal cord can
become permanent. We call this “centralization”.
As I previously described,
nerves enter the spinal cord at various levels between your spinal vertebrae.
When centralization occurs at one level of the spinal cord, there is a change
in other levels of the spinal cord above and below the site of the original
input. This is called “expansion of receptor fields” and explains why the
area over which a person feels their pain may be considerably larger than the
area which originally caused the pain to begin with.
Two of the consequences of
these biochemical changes are “Allodynia” and “Hyperalgesia” . Allodynia
refers to a person perceiving as painful something that they should not.
Hyperalgesia refers to someone feeling something as severely painful when most
people would consider the stimulus to be mildly painful.
It is also important to
understand that, particularly when dealing with your internal organs, pain
sensation is carried on very thin nerves. All of these very thin nerves can
transmit pain. However, anywhere from 30% to 80% of these thin nerves that
come from your internal organs such as your uterus, bladder, intestines, etc.
are “silent” - they are not doing anything. However, with prolonged
stimulation, these silent nerves become active.
To help you better understand
what is going on, it is also important to realize that the bladder has the
highest concentration of these thin nerves of any of your internal organs and
it has the highest proportion of the silent nerves of any of your internal
organs.
As a result, the evidence now
clearly indicates that when you have a pain sensation coming into the spinal
cord, there is “centralization” and “up regulation”. As I previously
described, the spinal cord itself then becomes the source of pain sensation
which then travels in the “wrong” direction back down into the pelvis. We
call this type of pain “neuropathic”.
As a result of this better
understanding, we can now better understand what we call visceral pain
syndromes and, for ease of description, they have been divided into a number
of categories. Always keep in mind that there is tremendous overlap. Also
keep in mind that the term visceral refers to your internal organs such as
your uterus, bladder, intestines, etc. Somatic refers to the rest of your
body including skin, muscles, bones, ligaments, etc.
The next section will
describe these various neuropathic syndromes that we see.
Visceral Hyperalgesia - This
refers to the increased sensitization to normal stimuli (hyperalgesia)
commonly seen in these syndromes. Examples include the irritable bowel
syndrome and interstitial cystitis. In reality, the pain of Interstitial
Cystitis is, technically speaking, allodynia and not hyperalgesia.
Visceral Somatic Hyperalgesia
- This refers to referred neuropathic pain from one organ to the external body
parts that share the same nervous system distribution with that organ.
Examples would be women with interstitial cystitis who also have vulvodynia
(pain around the vagina and related areas).
Trigger points on the
abdominal wall in women with chronic pelvic pain are another example of such a
condition.
Viscerovisceral Hyperalgesia
- This refers to pain arising in one organ making other organs more sensitive
to pain. I have recognized for years that women with endometriosis very often
have bladder symptoms similar to those women who have interstitial cystitis.
This would be one example. Another would be the fact that women with
interstitial cystitis frequently exhibit symptoms of irritable bowel
syndrome.
Visceral Muscular Reflex -
This refers to the increased tension frequently seen in your pelvic muscles as
a result of pain arising in other nearby organs.
It is also critically
important to keep in mind that the spinal cord has memory. As a result of
centralization, even when the original insult that created the pain has been
removed, many times the neuropathic responses that were set up in the spinal
cord remain and it is necessary, usually with drug therapy, to reduce this
super sensitivity to allow the spinal cord to return to a normal level of
activity.
CHRONIC
PELVIC PAIN IN MEN
The question that is often
asked is whether or not there is a male equivalent to the chronic pelvic pain
syndromes that we see in women. It does occur but it is much less frequent.
Much of the pain that women experience relates to their reproductive tract.
Men, at least those younger than 50, simply do not have the same types of
problems with their reproductive systems that women do. Male reproductive
problems tend to be more acute and short-lived.
There is one condition that
affects predominantly younger men that appears to be the male equivalent of
the chronic pelvic pain syndromes that we see in women. This condition is
frequently referred to as “Prostatosis”. Men who have the problem complain of
urinary frequency, urgency, etc. They also will complain of perineal pain.
The perineum in women is the bridge of tissue between the rectal opening and
the vaginal opening. It is the tissue that is cut during an episiotomy.
In men, the perineum is the
area between the rectum posteriorly and the scrotum anteriorly.
Men with prostatosis will go
to a urologist and initially it is felt that these men have prostatitis - an
actual infection in the prostate gland. However, the cultures are all
negative, semen smears are negative for infection, and there is no elevation
in the white count or other laboratory evidence to substantiate an infectious
diagnosis. Many of these men are given antibiotic therapies, often for a
prolonged period of time. The results are frequently less than satisfactory.
No one really knows exactly what causes prostatosis and, like chronic pelvic
pain in women, these men frequently are very uncomfortable without a
satisfactory solution for their complaints.
For the most part, however,
men are protected from the chronic pelvic pain syndromes that afflict women.
Men don’t have babies and the trauma inflicted on the pelvic floor during
labor and delivery obviously will not occur as often in men. Men usually do
not wear high heel shoes (I would be curious to know whether men who wear
cowboy boots regularly have these problems). The abnormal pelvic tilt created
by high heel shoes will frequently contribute to muscular pain in the deep
pelvis. Nonetheless, these men do have pelvic floor problems although the
cause is not always apparent. They do benefit from the same types of physical
therapy that often is of help in women with these pain syndromes. Furthermore,
except as already discussed, most diseases of the male reproductive tract will
produce acute pain but not usually chronic pain.
Chronic pelvic pain, as
common as it is, has often been the stepchild of gynecology. Until relatively
recently, sometimes it was possible to make a very accurate diagnosis and
initiate effective therapy — often it was not. Frequently women suffered with
little chance of relief.
As a result of a much better
understanding as to the causes of pelvic pain, women who were previously
unable to be helped can now achieve significant relief of their symptoms.
This pamphlet is designed to
inform you as to what is currently known about pelvic pain to help guide you
in your search for a successful outcome. Based upon the numerous stories I
have heard from my patients over the years, I know that for most women with
chronic pelvic pain and Endometriosis, it is an uphill, frustrating battle to
get the care you want.
A young woman came to me a
number of years ago for a routine problem. As part of my usual history, I
asked her whether her periods were painful and whether or not intercourse was
painful. To each of these questions, she responded no. I was therefore
somewhat surprised to discover that on pelvic examination, she was extremely
tender.
I discussed the situation
with her. Her husband was a sophomore medical student and I knew it would be
several years before she was in a position to begin thinking about a family.
Despite her negative history, her pelvic examination was extremely suspicious
for Endometriosis. I therefore recommended a laparoscopy since I knew that
she would be several years away from wanting to start a family. My
laparoscopy did indeed confirm the diagnosis of Endometriosis.
When she came back to the
office after her surgery to discuss my findings and recommendations for
therapy, she surprised me with the following comment. "Dr. Birnbaum," she
said, "lied to you when I first came to the office. My periods are so painful
I sometimes can't stand it and intercourse is sometimes so painful that we
have to stop in the middle." I asked her why she had not shared this
information with me when I first questioned her and her reply was quite
astounding. She said, "I've been to 2 other gynecologists with the same
complaints. They both told me it was all in my head. I was afraid that you
were going to call me a nut too ."
As astonishing as this story
may seem, it is, unfortunately, a story which I have heard repeated time and
time again.
Just when I think I have
heard the worst tale, another woman comes in the office with a story that goes
one better. I have in my practice a young woman who came to me in her early
twenties. She had one child that was born about two years before she came to
see me. Prior to that time, she was pain free.
Following her delivery, she
began to experience severe pelvic pain. She went to her OB/GYN. A
laparoscopy was performed and she was told she had some adhesions but there
were no other problems seen.
When her symptoms persisted,
this same physician carried out another laparoscopy. My patient was told that
her pelvic organs were normal and specifically that the OB/GYN had looked for
Endometriosis and had not seen it.
When her pain persisted, she
was started on Lupron. It had no significant affect on the pain but she was
only on it for two months.
She then went back to her OB/GYN
and told him that she was still having severe pain. He told her that, at that
point, her only option was a hysterectomy - this for a young woman with only
one child!
This woman came to me and
asked for my help. Her symptoms were typically those of Endometriosis and a
laparoscopy carried out about seven months after her previous laparoscopy
showed obvious Endometriosis. Furthermore, although some of the Endometriosis
implants were “fresh”, there were obvious areas of invasive disease in the
deep pelvis and there were obvious areas of burned out Endometriosis with
scarring on the pelvic sidewall.
Although there are always
going to be exceptions in medicine, I find it almost impossible to believe
that this woman did not have active visible Endometriosis at the time of the
previous laparoscopy that was carried out before she came to me.
A number of years ago, I saw
a woman who had had a laparoscopy by her OB/GYN who told her she did not have
Endometriosis. That surgery was videotaped and the woman brought her tape to
the office. I reviewed her tape with her and in the first five seconds of the
tape, there were obvious implants of Endometriosis in the pelvis.
I have recited these stories
to you so that you understand that I understand your frustration. If a woman
goes to her OB/GYN, in pain, has a laparoscopy and is told that everything is
normal, inevitably, she is going to start to question her own sanity. While
there is no doubt that emotional stress will certainly worsen pain, regardless
of its origin, I personally do not believe that any pelvic pain is
psychosomatic. If it ever is, it is certainly quite rare. All one has to do
is adopt the philosophy that if a woman is in pain, there has to be a reason
for it and it is the physician’s responsibility to do whatever is necessary to
establish the cause.
There is a bias that runs
through the medical profession. This bias is that women are neurotic - men
are not. A study published in the New England Journal of Medicine many years
ago showed that if men and women went to a physician with identical
complaints, the woman was more likely to be given a prescription for Valium
whereas the man would be taken seriously and worked up for some illness. I
have discovered in my years of practice that there is a great deal of organic
disease masquerading as psychosomatic problems. While there is a common
belief among some physicians that pelvic pain in women is mainly psychosomatic
in origin, my experience is that very little pelvic pain is psychosomatic.
While there certainly appears
to be a great deal of misunderstanding among physicians concerning pelvic
pain, there seems to be an equally great misunderstanding among women. One
common phrase that I hear in my office from my patients are words to the
effect that "I have cramps with my period but they are just normal cramps".
To better understand the
whole process, and to be able to better read articles on the subject, several
definitions are in order:
DYSMENORRHEA
is the medical term for painful menstruation.
DYSPAREUNIA
is the medical term for painful intercourse.
CHRONIC PELVIC
PAIN is defined as pain, either constant or intermittent, of at least
6 months duration.
Pain is a peculiar phenomenon
in medicine. It is possible to directly measure your temperature and
determine whether or not you have a fever. It is possible to measure your
blood count to tell whether or not you are anemic. There is, however, no
measure for pain. It is a purely subjective sensation and is best described
as simply any feeling which is unpleasant. It is, therefore, impossible for a
physician to determine by any measurement how much pain someone is in and
indeed the patient herself cannot compare the amount of pain she suffers with
anyone else. Each person is their own control.
Furthermore, there is no
question that emotional factors do influence a person's perception of pain.
If you are at a party and bang your leg on the table, you may not event
notice it until you get home and see the bruise on your leg. However, if you
are upset about something, even the smallest bump feels like a major injury.
DYSMENORRHEA
Dysmenorrhea refers to any
pain or discomfort or cramps or whatever that a woman experiences in
relationship to her menstrual flow. I consider any degree of dysmenorrhea to
be abnormal but it is the pattern of the pain in relationship to the
flow — not its severity — that is of greatest importance in helping to decide
what is causing the discomfort.
Until relatively recently,
little was known about dysmenorrhea and therefore, numerous explanations were
offered in an attempt to explain it. Teenage girls were told that they did
not exercise enough. We know that exercise helps dysmenorrhea but by totally
different mechanisms than anyone ever thought.
Women were sometimes told
that their cervix was too tight (cervical stenosis) and many women underwent
surgery to open the cervix in the hopes that this would relieve the
discomfort. In fact, true cervical stenosis is quite rare. Women with
dysmenorrhea rarely have it. All of these approaches were based upon what was
then a lack of knowledge as to the true cause of dysmenorrhea.
In reality, there are many
causes for dysmenorrhea and unfortunately, the names that we apply to these
problems are misleading. The terms we use have been handed down from years
gone by when very little was known about the physiology of menstruation. In
essence, there are 2 types of dysmenorrhea — one that we call 10
dysmenorrhea or essential dysmenorrhea and the other is termed 20 or
acquired dysmenorrhea. In reality, these are misleading terms because the
symptoms can mimic each other and therefore serve only to confuse rather than
illuminate.
Many teenage girls experience
cramps with their periods. We now know that in many cases, these cramps are
due to the increased production of a group of substances called
prostaglandins. Prostaglandins derive their name from the prostate gland in
men — the highest concentration of prostaglandin anywhere in nature is found
in semen. It was therefore thought that prostaglandins originated solely from
the prostate gland, hence the name. We now recognize that prostaglandins are
found all over the body and play a major role in many body processes.
Prostaglandins are produced
in the endometrium (the lining tissue of the uterus) and there are 2 principal
types of prostaglandins produced by the endometrium. One type makes the
uterus contract and go into spasm whereas the other type makes the uterus
relax. The "spasm" prostaglandin is produced in excessive amounts in women
with severe 10 dysmenorrhea
and is only produced in these excessive amounts if ovulation has taken place.
In the teenage girl with 10 dysmenorrhea,
i.e. increased prostaglandin production, the pain begins either coincident to
the onset of the menstrual flow or perhaps 12-24 hours before - not longer.
The cramps last for the first day or perhaps the first 2 days of the flow and
then diminish rapidly and disappear by the third day.
Secondary or acquired
dysmenorrhea means that some organic pelvic disease is causing the pain.
Endometriosis is the most common cause of acquired dysmenorrhea, with the scar
tissue and damage from either a previous pelvic infection or previous pelvic
surgery as the next most common causes. Infrequent causes include congenital
abnormalities of the reproductive tract. Adenomyosis is a fairly common cause
but is usually only seen in women in their thirties and forties. Usually the
pain of adenomyosis is annoying and troublesome but not as severe compared to
the other problems already mentioned.
The term "Secondary
dysmenorrhea" or acquired dysmenorrhea implies that the pain has to start
later in life. In fact, for many teenage girls with Endometriosis, the pain
begins at puberty. However, since the pain is the result of an organic
disease, we call it "secondary". The terminology is poor but everyone
understands what is meant by it.
Again, as in the case of 10 dysmenorrhea,
the diagnosis of 20 dysmenorrhea
(when it begins at puberty or shortly thereafter) depends more on the pattern
of the pain than the severity. A woman with organic pelvic disease can begin
to experience her discomfort as long as 2 weeks before the onset of the flow
and many women begin to experience their cramps 5-10 days before the flow
starts. Furthermore, instead of diminishing rather rapidly once the flow
begins, the pain associated with organic pelvic disease often lasts many days
into the flow and can even last throughout the entire flow. The pain may even
persist after the flow has ended.
Women with organic pelvic
disease, particularly Endometriosis, may exhibit a pattern of their
dysmenorrhea similar to that seen with 10
dysmenorrhea. In such situations, the history is obviously of little
value. However, when a woman begins to experience pain more than a day or so
prior to the onset of menstruation, this is always a sign of organic pelvic
disease.
The location of the
discomfort is also a clue as to its diagnosis. Since the uterus is a midline
organ, the cramps of 10 dysmenorrhea
are felt in the midline just above the pubic bone. It may also be felt in the
midline of the lower back. Since organic pelvic disease can involve the entire
pelvis, women with such a problem will often indicate that their pain is off
to one side or the other as well as being in the midline.
The pattern of the pain also
provides a useful clue. 10 dysmenorrhea
is usually a crampy pain whereas organic pain is often more steady. However,
there is sufficient overlap so that this is not a strong factor in making the
diagnosis.
The overall history of
dysmenorrhea also provides additional clues. The teenage girl with 10 dysmenorrhea
begins to have discomfort either at the time of her first menstrual period or
within a year or 2 after their onset. The 10 dysmenorrhea
will persist throughout her teenage years but usually, by the time that woman
reaches her early twenties, the pain begins to diminish.
A woman whose pain begins
more than a year or so after her first menstrual period and whose pain remains
significant throughout her twenties has organic pelvic disease. A woman who
does not begin to experience any discomfort at all until after the age of 20
almost always has some organic pelvic problem.
Another very important clue
to the presence of organic pelvic disease is the persistence of dysmenorrhea
after the birth of a child or the appearance of dysmenorrhea for the first
time after delivery. If a woman has primary dysmenorrhea, she will usually
notice that the pain disappears completely or nearly so after childbirth. A
woman who continues to experience significant dysmenorrhea after delivery
usually has Endometriosis. Similarly, a woman who begins to experience
dysmenorrhea for the first time after delivery also, in all likelihood, has
Endometriosis or some other pelvic problem.
Endometriosis is the most
common cause of dysmenorrhea in teenage girls. At one time, it was believed
that Endometriosis did not occur in young women but was exclusively a disease
of older women. That may have been more true at one time to a certain extent
but as societal patterns have changed over the past generation or so and with
the advent of newer diagnostic techniques such as laparoscopy, it was recently
found that 70% of teenage girls with chronic pelvic pain had Endometriosis.
Usually on the basis of a
woman's history, I can determine rather quickly whether or not she has organic
pelvic disease. If I strongly suspect chronic pelvic disease, then
laparoscopy is indicated because it is essential to establish a proper
diagnosis. Without a diagnosis in medicine, you cannot treat a patient.
Sometimes, however, additional tests are sometimes indicated.
As I pointed out earlier, a
woman produces excess prostaglandin from the endometrium only if ovulation has
occurred. A simple test is therefore to put a young woman on birth control
pills for 1 month. If her dysmenorrhea is the result of increased
prostaglandin production, her pain will be completely relieved. This
type of response to birth control pills allows one to make the diagnosis of 10 dysmenorrhea
with a high degree of confidence and laparoscopy is not warranted at that
time. If, however, the young woman indicates that the birth control pills
only somewhat relieved her discomfort but that she still had considerable
pain, this is almost proof positive that organic disease, most likely
Endometriosis, exists.
The use of Motrin and other
similar drugs as a help in diagnosis is not justifiable. Motrin works by
inhibiting the production of prostaglandin. Therefore, it is often very
helpful in women with 10 dysmenorrhea.
However, prostaglandins play a role in all types of pain and therefore the
fact that a woman may experience relief with Motrin does not rule out organic
pelvic disease. Treating a woman with Motrin may relieve her symptoms but it
does nothing to treat the underlying disease. Therefore the problem may get
worse while the woman is under the misconception that something beneficial has
been done for her simply because the pain has been relieved.
DYSPAREUNIA
Dyspareunia - painful
intercourse - is a fairly common symptom in gynecology. There are 2
principal types of dyspareunia: 1. pain on entry and 2. pain on deep
penetration. Some women may experience pain both on entry and on deep
penetration.
Entry pain can be the result
of several possible causes. Usually, it is the presence of some local problem
such as a vaginal infection or anything else that produces inflammation and
irritation around the vaginal opening.
Vaginissmus is the term for
spasm of the muscle at the vaginal opening. It is another cause of entrance
pain. Vaginissmus may be due to solely emotional factors. The woman who is
unable to relax enough to permit entrance of her male partner will naturally
find it painful. The vaginissmus may be the result of some earlier childhood
or adolescent trauma such as a rape, sexual abuse or similar problem. It may
also be that woman's silent communication to her partner that she really does
not wish to have intercourse with him.
Many women come to me
complaining of painful intercourse and have been told by previous physicians
that their "vagina is too small". Keep in mind that the vagina was designed
to deliver a baby's head and despite some wishful thinking on the part of some
men, I do not believe that any woman is "too small". I have personally never
seen a woman with a too small vagina unless she has had previous surgery or a
previous delivery. The one possible exception is a woman who is significantly
estrogen deficient, either from a natural or surgical menopause. In such
instances, the vagina will shrink and estrogen is necessary to help it
re-establish normal functioning.
Another cause of entrance
pain is lack of adequate lubrication. This is commonly seen in women after
menopause unless they receive Estrogen Replacement Therapy. However, in
younger women with adequate estrogen, failure to lubricate adequately is
usually a psychological symptom-not a physical one. Lubrication in a woman
is the sign of sexual readiness. A woman who has not properly lubricated is
no more ready for intercourse than a man who has not yet achieved an
erection. A woman who consistently fails to lubricate adequately is really
communicating very silently but very loudly that she ought to re-examine the
situation that she finds herself in. It may be that the woman is simply not
ready to participate in a sexual relationship with anyone or it may be that
she is not particularly fond of the man she is with and this is her way of
letting herself and him know.
Less common causes of entry
dyspareunia include Vulvar Vestibulitis and Essential Vulvodynia. These are
uncommon but when they occur, they produce very severe pain.
Painful intercourse
associated with deep penetration is always a sign of organic pelvic
disease. Some of the causes I have already mentioned including
Endometriosis, adhesions, etc. Another fairly common cause of deep pain is a
urinary tract infection. Ovarian cysts, tumors, etc. comprise other causes of
deep pain. There are numerous other causes-too numerous to list here-but
suffice it to say that a cause must be searched for.
Some women have pain both on
entry and on deep penetration. In many instances, these are women who have
experienced deep pain and then are fearful the next time they try to enjoy
intercourse that it will hurt as much as it did the previous time. They
therefore naturally begin to tense up and the muscle around the vaginal
opening contracts. Eventually, it may go into spasm. This then produces entry
pain as well.
PELVIC PAIN
Pelvic pain is another common
presenting compliant in gynecology. By pelvic pain, we are referring to the
pain that women experience at times of the month other than her menstrual
period. The pain may or may not be similar to her menstrual pain. It may be
located differently than her menstrual pain. However, intermenstrual pain is
almost always a sign of organic pelvic disease. Like acquired dysmenorrhea
or deep dyspareunia, a cause must be searched for. Usually, women with
intermenstrual pelvic pain also have other pelvic symptoms as well.
URINARY
TRACT
INTERSTITIAL
CYSTITIS (IC)
OVER 80% OF
WOMEN WITH OTHERWISE UNEXPLAINABLE CHRONIC PELVIC PAIN WILL ULTIMATELY BE
FOUND TO HAVE INTERSTITIAL CYSTITIS
During the 1980's and 1990's,
it was not rare for a woman to appear on Oprah or another similar program
complaining that she had suffered for years and years and years and that
finally, after much trial and tribulation, she was diagnosed with Interstitial
Cystitis (IC). As part of her commentary, this woman would almost always say
that IC was a very common disease and very much misdiagnosed.
Based upon the criteria for
diagnosis that prevailed until relatively recently, her statements were
incorrect. Based upon those older criteria and our lack of understanding as
to what causes IC, it was considered to be a fairly rare disease even though
it was still not diagnosed as often as it should have been.
With our better understanding
as to what is really going on, we have now come to realize that IC is in fact
a very common disease. The fact that you are reading this pamphlet indicates
that I have told you that you probably have it. This pamphlet is designed to
better educate you about what IC is and what you can do to help yourself.
To give you an example of how
common IC is now recognized to be, one study showed that in a group of women
undergoing laparoscopy for chronic pain because of suspected endometriosis, if
they did not have endometriosis, 95% of those women were subsequently found to
have IC.
Until recently, the diagnosis
of IC had to be made at the time of cystoscopy - a very common urologic
procedure in which a lighted instrument is inserted into the bladder.
However, even previously, if you were to simply do a cystoscopy in the office,
most women's bladders would look normal. To diagnosis IC, the woman had to be
put under anesthesia and her bladder would be filled with about a liter of
water. This is far more than you could ever tolerate awake.
With the bladder over
distended, the urologist would look for small areas of hemorrhage or
ulceration in the wall of the bladder. Furthermore, small biopsies would be
taken from the bladder wall and the number of mast cells counted.
Using those criteria, even
then, only a relatively small number of women would be diagnosed with IC. I
talk about women because the vast majority of patients with IC are women
although it does occur in men.
As we have come to understand
what causes IC, we realize that we were in fact missing many women with this
disease. We now recognize that many many women have it. Unfortunately, it is
still a very frustrating disease to treat.
IC is now recognized to be a
"neuropathic pain disease". This is explained in greater detail at the end of
this pamphlet. Essentially, however, it simply means that for whatever
reason, your nervous system has been "turned on" and you become super
sensitive to normal stimuli. As an example, a "normal" person will feel the
urge to urinate when they have perhaps 6 to 8 ozs. of urine in their bladder.
A woman with IC will feel that same urge with only 2 or 3 ozs.
Your nervous system becomes
super sensitized usually if you have been in chronic pain for some other
reason. Sometimes the initial precipitating problem has been forgotten.
However, over the years, if you are in chronic pain, the constant bombardment
of the spinal cord with pain impulses causes the spinal cord to become
inflamed (in the biochemical sense) and this sets the stage for the
neuropathic pain.
It is important to understand
that the bladder has the highest concentration of nerve fibers of any organ in
the pelvis. When these nerves become super sensitive, the bladder pays a
heavy price and you eventually develop the disease we call IC.
Based upon our current
understanding of IC, cystoscopy is no longer even necessary to make the
diagnosis. There are basically only three groups of women who need to have a
cystoscopy as part of their evaluation for IC. The first are those women who
have blood in their urine. The second are those women who have been treated
for presumed IC and have not shown significant improvement. The third group
are those women who develop their IC symptoms after menopause. The vast
majority of women with IC start to have symptoms in their 20's or 30's -
sometimes even younger.
The simplest and easiest way
to diagnose IC is based upon a good history, a good physical examination, and
the PUF questionnaire. PUF stands for Pain, Urgency, Frequency.
A woman with IC will complain
of significant urgency - the need to run to the bathroom all the time even
when there is very little urine in her bladder. She will frequently have to
get up at night to urinate. This is a much more significant symptom in women
who have never had children. Once a woman has had children, most have the
need to get up to urinate at night because of the injuries to the pelvis that
a woman suffers during labor and delivery (injuries that set the stage for
IC).
Women with IC are frequently
in pain although they don't always have to be. Pain with intercourse is a
very common symptom of IC. Many women will complain of lower abdominal pain -
sometimes constant but sometimes intermittent.
In an attempt to minimize
their bladder symptoms, many women will start to cut back on their fluid
intake. This is another classic symptom of IC.
On physical examination, even
mild pressure on the bladder wall will cause considerable discomfort.
The PUF questionnaire takes
about 30 seconds to fill out. A "normal" woman with score less than 10 points
on this questionnaire - most normal women will score only 1 or 2 points.
If a woman scores more than
10 points, she probably has IC. If she scores more than 20 points, she almost
certainly has IC. Even women with a score of only 5 points have a 50/50
chance of having IC.
As I mentioned earlier, one
of the hallmarks of IC is a super sensitized bladder. This can be tested for
in the office by means of the "potassium sensitivity test". Potassium is a
very irritating substance. If you put potassium into the bladder of a normal
woman, she will not know it is there. However, if you put a potassium
solution into the bladder of a woman with IC, she will usually experience
rather significant pain.
The test is performed by
simply filling the bladder with water to establish a baseline. Both normal
women and women with IC will not experience any pain.
The bladder is then drained
and filled with a potassium solution. The woman with IC will often develop
severe discomfort, even to the point of actual pain.
Although this is an easy test
to do in the office, you must always keep in mind that the amount of pain
generated by the potassium solution can be rather severe and you have to be
prepared to put another solution into the bladder to "rescue" it.
Although there are some
physicians who believe that the potassium sensitivity test is an important
part of the work-up, studies have clearly shown that there is a very high
degree of correlation between the score on the PUF questionnaire and the
potassium sensitivity test.
Research has shown a significant correlation between
your score on the PUF questionnaire and the likelihood of your having a
positive Potassium Sensitivity Test. The actual numbers are as follows:
If you score between 10 and
14 points, you have a 74% chance of having a positive test.
If you score between 15 and
19 points, you have a 76% chance.
If you score over 20 points,
the Potassium Sensitivity Test is positive 91% of the time.
One of the reasons for the
potassium sensitivity test being positive in women with IC is damage to the
lining of the bladder. Urine itself is a very irritating substance. It is
rather acid and contains numerous proteins and other chemicals that normal
cells don't tolerate very well. As a result, a normal bladder has a thin
coating that we call the "GAG" layer. In most (but not all) women with IC,
the GAG layer breaks down and the cells of the bladder wall are exposed to
urine. This further worsens the symptoms.
The treatment of IC involves
trying to reduce the pain, reduce the urinary frequency, and reduce the
irritation to the bladder wall. Obviously, this requires multiple therapies.
Unfortunately, women with IC frequently end up looking like walking drug
stores. Simple painkillers, often requiring narcotics, are one of the
mainstay therapies of IC.
Reducing urine acidity and
irritation is another important step. There is an over-the-counter medication
that is sold for acid indigestion. However, it also makes the urine less acid
and I strongly encourage you to get it. It is called Prelief. Many
pharmacies do not carry it but they can order it for you. If the pharmacy
doesn't have it or can't get it, you can call the company directly at
1-800-994-4711.
Another way to reduce urine
irritation is to alter your diet and eliminate those foods and other
substances that make the urine far more irritating. The Interstitial Cystitis
Association's website has a long list of such foods. It doesn't mean that
every woman is going to respond adversely to every food on the list but it
will give you some ideas as to how you can modify your diet. One of the more
irritating foods is coffee. Many women are simply not willing to give up
their morning cup of coffee. They just have to understand that their bladder
will pay a price for that.
There are cells in the wall
of the bladder called mast cells and they contain histamine. When the mast
cells are triggered to release their histamine, this also creates significant
bladder irritation and pain. The simple over-the-counter antihistamine
Benadryl can often be very effective in helping with this problem. The newer
antihistamines such as Claritin or Zyrtec are not effective. It must be the
older antihistamines.
As I mentioned earlier, IC is
a neuropathic pain syndrome. There are specific drugs that help calm your
nervous system down. Elavil and Neurontin are two of the more commonly
prescribed drugs. Cymbalta also has been shown to be of some benefit.
Unfortunately, these drugs also have side effects and many women cannot
tolerate them. However, if you can tolerate them, they will significantly
help your symptoms.
One of the more important
therapies is to help the body replenish and repair the GAG layer. Elmiron is
a drug that has been shown to do this. It takes 3 to 6 months for the Elmiron
to work so you cannot expect an overnight success. However, with time and
perseverance, although we may not be able to completely eliminate your pain,
hopefully, we can reduce it to a point where it is no longer a significant
issue in your life.
Part of the confusion about
IC stems from the fact that only a very small percentage of women with the
classic symptoms of IC will have the typical findings when a cystoscopy is
performed. Since these women will have a normal looking bladder, they will be
told they do not have IC and they will suffer needlessly.
Perhaps the term IC should be
relegated to the history books. Painful bladder syndrome is a much better
term and it accompanies all women with the symptoms whether or not their
bladders look abnormal.
The most important thing to
understand about IC is that it is not a disease of the bladder - it is a
disease of the nervous system. It is the result of a spinal cord that has
been up regulated and, as a result, neuropathic pain sensation is being
transmitted into the bladder along those networks of pain fibers that I
mentioned previously.
The bladder contains a large
number of special cells called “mast” cells. Mast cells contain large amounts
of histamine which is a very irritating substance and can cause many nasty
symptoms. People who suffer seasonal allergies know full well what histamine
does to your respiratory tract. Think of what it can also do to your
bladder.
We have also now come to
realize that each mast cell has its own separate nerve fiber. Therefore, when
the nervous system becomes activated, these mast cells are stimulated and they
release histamine. This is one more piece of evidence that IC is in fact a
nervous system disease.
Women with a painful bladder
syndrome, regardless of what their bladder looks like at the time of
cystoscopy, are all treated in the same way. Therapy is directed at, first of
all, reducing the overall level of pain coming from all the pain generators
that have been identified. Additional medications to specifically target the
bladder are used. The bladder itself is lined with a peculiar mucoid
substance that we call the GAG layer and this is often absent or significantly
diminished in women with IC. Drugs such as Elmiron are very helpful in
getting the bladder to regenerate its GAG layer. One of the functions of the
GAG layer (perhaps the function of the GAG layer) is to protect the cells of
the bladder from irritating substances in the urine. Without the GAG layer,
these various substances irritate the bladder wall significantly. The problem
is made all the worse because of the changes in the nervous system such that
the woman responds in a heightened fashion to mildly irritating substances.
One of the tests that you may
read about for IC is a potassium sensitivity test. If you put a weak solution
of potassium chloride into a normal bladder, the woman will not notice any
significant discomfort. However, if you put potassium chloride into a bladder
of a woman with IC, she will experience severe pain. This is just one more
manifestation of the fact that the bladder is now responding in an exaggerated
way to otherwise innocuous stimuli.
Because the mast cells are
being stimulated to release histamine, antihistamines are also of considerable
benefit. Unfortunately the newer, non-sedating antihistamines do not seem to
work as well as the old original antihistamines such as Benadryl but they are
of considerable benefit.
Drugs that simply slow down
the bladder are also of benefit in helping control some of the symptoms of
IC.
Drugs that we use to treat
all chronic pelvic pain patients that help reduce the level of activity in the
spinal cord are also of considerable benefit in the treatment of IC.
Lastly, specific diets that
avoid substances that we know are irritating to a sensitized bladder are also
of benefit. The Interstitial Cystitis Association’s web site has extensive
lists of foods that you should avoid.
Unfortunately, when all is
said and done, treating IC is a frustrating process. It will take 3 to 6
months at a minimum for you to notice any significant improvement in your
bladder symptoms. Always keep this in mind and you must give the medications
a chance to work if you are going to achieve any benefit.
No one knows for sure how common IC really is.
If you are a purest and demand strict criteria, true IC is uncommon.
Nonetheless, there are many women who have the symptoms of IC and who may be
just as debilitated as if they had the true disease. Such women are
frequently termed as having a “painful bladder syndrome” which is probably one
part of the overall spectrum of painful bladder symptoms - IC being the most
extreme. Based on the PUF score, IC may afflict as many as 5% of all women.
It is far more common than we had ever believed to be the case.
Whether or not you make a
definitive diagnosis of IC, women with a painful bladder syndrome will be
treated the same anyway. The purpose of the therapy is to reduce the need to
run to the bathroom all the time and to reduce the severity of the bladder
symptoms. There are several approaches that have varying degrees of success.
There is a drug called
Elmiron that was specifically designed for the treatment of IC. It takes
several months before a woman will begin to notice any beneficial effect and,
even then, even in women with true IC, the results are not always that great.
The use of low dose tricyclic
antidepressants such as Elavil, Tofranil, or Pamelor also can be extremely
beneficial in the treatment of the painful bladder syndrome. More recently, a
new drug – Cymbalta – may also be used. These drugs are given in doses far
lower than would normally be used to treat depression. They have their
beneficial effect because they modify and modulate the way your brain
processes pain. Quite simply, the pain from the bladder doesn’t bother you as
much.
Neurontin is another drug
that is often used to treat nerve related pain and some women with a painful
bladder syndrome will also respond to this drug as well.
Biofeedback has also been
shown to be of considerable value in the treatment of a painful bladder.
Bladder instillations of DMSO
can also help relieve some of the symptoms but it is therapy that must be done
repetitively.
Numerous other medications
have been put into the bladder in an attempt to relieve the symptoms.
Unfortunately, none of them are particularly effective although occasional
patients do claim to get relief.
One therapy that has
absolutely no place in the treatment of any painful bladder syndrome is
surgery. I have seen several women over the years who have had portions of
their bladder removed or other types of surgery carried out on the bladder in
an attempt to help their symptoms. Not only are such therapies uniformly
unsuccessful, these women were almost always worse. I actually saw one woman
who had a complete removal of her bladder. Her pain was not relieved. – not
surprising based on what we now know about neuropathic pain.
The bottom line - if you have
these kinds of issues and someone recommends a surgical procedure to correct
it, run as fast as you can in the opposite direction.
The only way to definitively
diagnose IC is a cystoscopy under anesthesia. During this procedure, the
urologist will look inside the bladder. However, this type of cystoscopy must
be done under anesthesia because the definitive test involves distending the
bladder with very large amounts of water. It would be far too painful to do
this while you are awake.
If a woman truly has IC, the
bladder wall develops multiple tiny hemorrhages during the distention. Also,
sometimes the urologist can see small ulcers in the bladder wall and,
depending upon how far they wish to go, small biopsies of the bladder wall may
be taken. If the woman truly has IC, the biopsy will show a significantly
increased concentration of mast cells. These are cells that play a
significant role in the inflammatory process.
Whether or not you wish to
undergo such a procedure is a personal decision. Keep in mind that, even if a
definitive diagnosis of IC is made, it is not going to change the therapies
all that much. The treatment would be the same for a woman with a painful
bladder syndrome whether or not she has been definitively diagnosed with IC.
At one time, the diagnosis of
IC was made based on the appearance of the bladder at the time of cystoscopy.
The bladder would be over distended with water and little ulcers or other
abnormalities in the bladder wall would be identified. Biopsies would be
taken of the bladder wall.
We have women who had a
negative cystoscopy and were told they did not have IC and continued to
suffer.
We now recognize that
cystoscopy aids in the diagnosis but is really not essential. The use of the
PUF (Pain, Urgency, Frequency) questionnaire along with a pelvic examination
looking for bladder tenderness is a highly accurate way of diagnosing IC.
Furthermore, many women will have all the symptoms of IC with a negative
cystoscopy. This in no way negates the diagnosis. I will sometimes have a
woman undergo a cystoscopy if I happen to be doing a laparoscopy for various
reasons. However, I see many patients who do not require laparoscopy yet I
have absolutely no hesitation in making the diagnosis of IC and treating
them.
The following section (in
italics) is what I had previously written a number of years ago based on the
information available at that time. It is amazing how much we have learned in
the past few years about this problem. I include this so you can see how our
thinking has changed.
Diseases of the urinary
tract commonly produce pelvic pain in women. Furthermore, women with chronic
pelvic pain very often have urinary symptoms and this makes establishing an
accurate diagnosis all the more difficult.
Usually the symptoms are
quite unmistakable and a proper diagnosis is easy to make. Occasionally,
however, urinary tract symptoms may be so subtle as to mislead the physician
and the appropriate diagnosis becomes apparent only with proper testing.
Rarely, pelvic disease may masquerade as urinary tract symptoms. I have seen
several women in my practice with significant bladder discomfort, urinary
frequency, urgency and painful urination. However, these women had been to
numerous urologists with numerous investigations-all of which were negative.
Interestingly, these women
all had Endometriosis or Adenomyosis. After thinking about it, I have come up
with the following explanation for these women. It is well known that pain
involving the skin, muscles, bones, etc., can be very precisely located by
the person feeling that pain. If you cut your finger, you know exactly where
it hurts. However, pain from internal organs is much more vague, much more
diffuse and much less precisely located. Furthermore, it is a natural
instinct when you have discomfort to try to get rid of it. If you have
discomfort in the intestinal tract, you often try to move your bowels in an
attempt to relieve that discomfort.
It is my feeling that
these women were feeling pelvic discomfort and this discomfort was so poorly
localized in her mind's perception, that they could not determine that it was
of GYN origin. Furthermore, many of these women began to urinate frequently
in an attempt to simply relieve the discomfort they were experiencing.
In all cases, these women
underwent hysterectomy with complete relief of their urinary tract symptoms.
Although this is an uncommon problem, it is interesting and provides some
useful insights into the way the body functions.
There is one problem,
thankfully rare, that can be a crippling cause of pelvic pain - namely,
Interstitial Cystitis (IC). IC is a bladder problem for which no one
understands the cause. The symptoms are lower abdominal pain, urinary
frequency and urgency, and the inability of the bladder to retain more than a
small amount of urine.
The problem with IC is
that it is frequently over diagnosed. Several years ago, a woman with IC,
whose diagnosis had not been properly made, wrote a book. The implication of
the message in her book is that thousands of women have IC that is undiagnosed
and are, therefore, suffering needlessly. This is not true.
Every few years, someone
writes a book or gets on one of the talk shows such as “Oprah” and describes
her many years of suffering with IC until someone made the right diagnosis.
The implication is that there are millions of women running around with
undiagnosed IC who are suffering needlessly.
There is no doubt in my
mind that IC is more of a problem than is usually appreciated but it is not as
common as these books would have you believe. Furthermore, I have seen women
in my practice who were told that they had IC by some “experts” who in fact
did not have this disease.
INTESTINAL
TRACT
Pain from the intestinal
tract, particularly the large intestine, is felt across the lower abdomen.
Usually, as with the bladder, the symptoms are rather distinctive and a
proper diagnosis is easy to arrive at. There is usually an associated change
in bowel habits, etc.
One fairly common problem,
especially in older women, which is often difficult to distinguish from GYN
disease is diverticulitis. Diverticulosis is almost a universal problem in
older people, particularly in our Western culture. One of the principal
causes of diverticulosis is inadequate fiber in the diet. Diverticulosis is