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What causes endometriosis?

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Doctors don't know exactly. Some experts think that menstrual blood with endometrial cells travels back through the fallopian tubes and out into the space inside your pelvis, and the cells stick to other organs there. This is called retrograde menstruation.

If your mom or sister has endometriosis, you’re more likely to get it, too. And research shows that it seems to be worse in later generations.

Some women with endometriosis also have immune system disorders. But doctors aren’t sure whether this is a cause or an effect.

From: Endometriosis WebMD Medical Reference

Reviewed by Nivin Todd on February 12, 2019

Medically Reviewed on 2/12/2019

SOURCES: Cleveland Clinic Department of Obstetrics and Gynecology.

National Institutes of Health.

Mayo Clinic: “Endometriosis.”

Endometriosis.org: “Symptoms, Causes, Diagnosis.”

Reviewed by Nivin Todd on February 12, 2019

SOURCES: Cleveland Clinic Department of Obstetrics and Gynecology.

National Institutes of Health.

Mayo Clinic: “Endometriosis.”

Endometriosis.org: “Symptoms, Causes, Diagnosis.”

Reviewed by Nivin Todd on February 12, 2019

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What are symptoms of endometriosis?

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