Endometriosis is widely understood as a condition that causes pelvic pain, heavy periods, and painful intercourse. Many do not realize that it can cause and be related to other issues including gastrointestinal, bladder, and it may also be connected to temporomandibular joint (TMJ) dysfunction and jaw pain. Recent research and health reporting are shining light on what many patients have suspected for years: women with endometriosis often experience pain outside the pelvis. This includes in the jaw, face, and head.
What the Evidence Shows
Two recent studies in the Journal of Clinical Medicine demonstrate a strong relationship between endometriosis and TMJ or jaw-related symptoms:
- Endometriosis and the Temporomandibular Joint-Preliminary Observations found that women with endometriosis were significantly more likely to report pain of the temporomandibular joint (TMJ), especially on the same side as their pelvic pain and in association with teeth clenching. This suggests a potential pattern linking pelvic symptoms and orofacial pain.
- Prevalence of Temporomandibular Disorders in Adult Women with Endometriosis went further, reporting that 77.3 % of women with endometriosis screened positive for symptoms of temporomandibular disorders (TMD). This is nearly double what is typically seen in the general population.
Why Might Endometriosis Be Linked to Jaw Pain?
The association between endometriosis and jaw symptoms likely arises from several overlapping pain mechanisms:
1. Chronic Overlapping Pain Conditions
Both endometriosis and TMD fit into a group of chronic pain conditions known to overlap, such as migraines, fibromyalgia, and irritable bowel syndrome. These conditions share features like widespread pain, pain amplification, and increased nervous system sensitization. This simply means that the body’s pain-processing system becomes more reactive.
2. Central Sensitization
Central sensitization is where the nervous system maintains heightened responsiveness to pain, and this can play a role in both endometriosis and TMD. This can lead to pain experiences in regions beyond the original source of disease. For example, chronic pelvic pain can prime the nervous system to detect pain elsewhere, such as in the jaw, neck, or face.
3. Muscular Tension and Stress Responses
Many patients with endometriosis report increased stress, anxiety, and pain. These are factors that can contribute to jaw clenching and teeth grinding (bruxism). These behaviors overload the muscles around the TMJ and can lead to sore or painful jaw movement.
4. Hormonal Influences
Hormonal fluctuations, particularly changes in estrogen, may influence joint and muscle pain, including in the TMJ. While this is a less studied mechanism, some clinical observations suggest a hormonal component to TMJ symptoms in women. (Patient anecdotes and clinician discussions highlight this possibility, though more research is needed.)
What This Means for Someone With Endometriosis
If you’re living with endometriosis and are also experiencing:
- Jaw pain or stiffness
- Pain when chewing
- Frequent headaches
- Clicking or locking of the jaw
- Teeth clenching or grinding (bruxism)
…it could be more than just stress. It might be part of a pattern of overlapping pain that’s connected to your endometriosis.
How Physical Therapy Can Help
Physical therapy (particularly from clinicians experienced in chronic pain, women’s health, and TMJ disorders) can be a powerful part of managing both endometriosis-related pain and jaw issues.
1. Comprehensive Pain Screening and Assessment
Physical therapists can screen for TMD symptoms using validated tools and assess jaw function, posture, and muscle tension patterns.
2. TMJ-Focused Manual Therapy
Techniques such as soft tissue mobilization, gentle joint mobilization, and targeted stretching can:
- Improve jaw range of motion
- Reduce muscle guarding
- Alleviate pain during chewing and movement
These manual interventions help restore function in the jaw muscles and TMJ.
3. Habit and Muscle Tension Training
Many people with TMD habits such as:
- Teeth clenching
- Jaw tightening
- Bruxism
Physical therapy can help retrain relaxed jaw and tongue resting positions and offer biofeedback to reduce tension. Reducing these habits often decreases referred pain to the face and head.
4. Whole-Body and Postural Integration
The jaw is connected to the neck, shoulders, and even pelvic floor through muscular and fascial lines. A physical therapist can:
- Improve neck and head posture
- Optimize breathing patterns
- Address pelvic floor muscle tension
This integrated approach often reduces generalized pain sensitivity and helps calm the nervous system.
5. Nervous System Desensitization
By using graded movement, relaxation training, and sensory desensitization techniques, physical therapy can help reduce chronic pain amplification that contributes to both endometriosis pain and TMJ discomfort.
Key Takeaways
- A growing body of evidence shows a high prevalence of TMJ symptoms in women with endometriosis, suggesting a real and clinically significant connection.
- Shared mechanisms such as central sensitization and stress-related muscle tension may explain why pain is felt in both the pelvis and the jaw.
- Physical therapy offers effective, noninvasive strategies to address TMJ pain, muscle tension, posture, and nervous system sensitization. Physical therapy can help improve quality of life for those with overlapping pain conditions.
If you’re experiencing ongoing jaw pain alongside endometriosis, consider speaking with a physical therapist who specializes in TMJ disorders and chronic pain because relief often comes from treating the whole person, not just one part of the body.
References
Marciniak T, Walewska N, Skoworodko A, Bobowik P, Kruk-Majtyka W. Prevalence of Temporomandibular Disorders in Adult Women with Endometriosis. J Clin Med. 2024 Dec 13;13(24):7615. doi: 10.3390/jcm13247615. PMID: 39768537; PMCID: PMC11677550.
Wójcik M, Goździewicz T, Hudáková Z, Siatkowski I. Endometriosis and the Temporomandibular Joint-Preliminary Observations. J Clin Med. 2023 Apr 14;12(8):2862. doi: 10.3390/jcm12082862. PMID: 37109199; PMCID: PMC10144081.