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Deep Disease

Can endometriosis spread to the brain?

The short answer

Yes, endometriosis can occur in the brain, but brain involvement is extremely rare. Sometimes neurologic symptoms that flare with your cycle are related to endometriosis affecting nerves or areas in the abdomen or chest rather than the brain itself.

Yes, endometriosis can occur outside the pelvis, and it has been reported in distant parts of the body. That said, brain involvement is extremely rare compared with pelvic disease or even other extra-pelvic locations like the diaphragm and chest.

When people worry about endometriosis in the brain, it’s often because they’re experiencing neurologic symptoms (headaches, nerve-type pain, numbness or weakness) that seem to flare with their cycle. Sometimes those symptoms are related to endometriosis affecting nerves or areas higher in the abdomen or chest rather than the brain itself, and the cyclical timing can be an important clue. If you have unusual symptoms that track with menstruation, our team can help you look at the full-body picture, determine what’s most likely, and plan next steps for accurate diagnosis and treatment, including minimally invasive excision when appropriate.

Where to go from here

Understand it, compare it with what you're feeling, then talk it through with us.

Step 1 · Understand

Understand the condition

Step 3 · Speak with Us

Concerned about endo beyond the pelvis?

Brain endometriosis is extremely rare, but cyclical neurologic symptoms deserve a careful evaluation. Our specialists can help determine whether deep endometriosis or nerve involvement is contributing and guide the right next steps.

Questions people ask next

All deep disease questions
  • Can endometriosis affect organs outside the pelvis?

    Yes, endometriosis can affect organs above the pelvis, such as the intestines, and in rarer cases the diaphragm or lungs. Symptoms may follow a menstrual pattern, including upper abdominal or chest pain, shortness of breath, or bowel symptoms.

  • Can endometriosis irritate or entrap pelvic nerves?

    Yes, endometriosis can irritate, inflame, or tether pelvic nerves, especially when it grows deeply into tissues. When lesions are near nerves, symptoms can include cyclical sciatica-like leg pain, genital burning, or sharp shooting pain in the rectum or vagina.

  • Can endometriosis cause sciatica or leg pain?

    Yes, endometriosis can cause sciatica-like symptoms and leg pain in some patients by growing in or near the sciatic nerve or causing inflammation and scarring that create nerve pressure. Pain may worsen before or during a period, but it doesn’t have to be cyclical.

  • Can endometriosis be life-threatening?

    Endometriosis is not typically life-threatening, but it can become medically serious when it affects organs. Rare complications include bowel obstruction or silent kidney damage, while chest involvement can be associated with a collapsed lung in a small subset of patients.

Reach Out

Have a question?

Lotus Endometriosis Institute provides California-based surgical evaluation and advanced excision care for patients with suspected endometriosis, adenomyosis, complex pelvic pain, and related conditions.


Many patients contact us from outside California to learn whether traveling for in-person evaluation and possible surgery may be appropriate.

Call Us

(424) 255-1340

(805) 920-0909

Fax: (805) 935-4338

Santa Monica, CA

2121 Santa Monica Blvd, Santa Monica, CA 90404

Operating Hours

8am - 5pm
Monday - Friday

Arroyo Grande, CA

154 Traffic Way, Arroyo Grande, CA 93420