Facial Pain Problems: Why So Many Women?
In my practice, we see 4 distinct categories of facial pain problems.
- Muscle and joint pain problems
- Nerve pain problems
- Tension Headache and Migraines
- Chronic widespread pain (formerly called fibromyalgia)
It would seem that these problems could affect anyone, but in fact, the vast majority of patients that walk through the door of my practice are women. Believe it or not, somewhere between 78% and 82% of all the patients that I see are female.
In the past this dominance of women was attributed to social and cultural factors that prompted women to seek care more frequently than their male counterparts. Though women do seek care more frequently than men for a number of medical problems, research in pain biology has provided evidence that there are unique factors that are likely driving this huge statistical difference particularly in the face and jaw.
The Estrogen Connection
One big biologic difference between men and women relates to the hormone estrogen. Studies have shown that variable levels of estrogen not only has the ability to impact on the effectiveness of the body’s endorphins (our natural pain fighters) but can also increase inflammation associated with the Temporomandibular Joints (TMJ). During times of persistent stress, compromised sleep and monthly menstrual cycles, estrogen levels fluctuate sufficiently to prompt pain to emerge in unexpected ways not commonly seen in men.
As estrogen is known to compromise the strength and adaptive capacity of ligaments throughout the body, the TM joints are a common location for problems to surface. As a result the supportive jaw ligaments in women are likely to become more readily compromised when subject to the forces of normal function and certainly to excessive functions like gum chewing, nail and cuticle biting, and clenching or grinding of the teeth. As a result, symptoms of jaw clicking, popping and locking are more likely to occur, persist and escalate in women when compared to men.
Also when considering the biologic differences between men and women, it is worth mentioning that the jaw muscles of men have greater endurance than similar muscles in women. This likely occurs as the jaw muscles of women receive less blood flow (and therefore less oxygen and nutrients) than the same muscles in men, making them more susceptible to tire more easily during both normal and excessive jaw use.
As a result, as oxygen levels in muscle tissue drops, the chemical makeup of the muscle changes with lactic acid and other irritating substances accumulating overtime. This chemical changes leads to muscle soreness initially and then muscle weakness and susceptibility to spasm as time passes. These factors therefore may be responsible for the predisposition women have in developing facial and jaw pain and problems associated with jaw motion.
In attempting to understand why women have much more profound pain experienced in the Temporomandibular joints, the impact estrogen potentially has in increasing the intensity and persistence of inflammation cannot be overlooked. Specific estrogen receptors in the TM joints of women must therefore not be overlooked when trying to understand the predisposition of women to these often debilitating problems.
Migraines, Continuous Nerve Pain and Chronic Widespread Pain
Within this category of diverse sufferers, we again see a female dominance. Though the reasons for the onset of these very different pain problems in all individuals are not fully understood , there is evidence that each of these pain problems to some degree are connected to lowered nerve firing thresholds. Research has in fact suggested that these lowered nerve firing thresholds that lead to pain, are the result of an individuals genetic makeup( an individuals phenotype) and or due to changes in an individual’s genetic makeup due to environmental influences. These are called epigenetic changes. One or both of these factors are often responsible for changes in the way the brain interprets sensory signals received from all parts of the body. When normal sensory signals received from bodily tissues are interpreted as noxious , an individual becomes predisposed to pain problems . As over 60 percent of all sensory information reaching the brain comes from the oral and facial region, women who more commonly have these genetic or epigenetic profiles will suffer to a greater extent whether the initiating factors were traumatic events of all degrees, environmental challenges, sleep compromises and/or life stressors of all types.
As the medical community begins to understand this biologic predisposition to facial pain and jaw related problems, women who come to my office are not categorized as complainers who can’t handle life’s tensions and challenges. Rather, I understand the complexity of these problems, and don’t blame the person. I focus on putting the best treatment strategies together that will confront not only the pain prompting biology but also the person who is in trouble.
With the success that I have achieved over the years you should be optimistic that there are answers to your problems.
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