U.S. National Library of MedicineNational Institutes of Health
Skip navigation
MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You
  FAQs Site Map About MedelinePlus Contact Us
español

Printer-friendly version E-mail this page to a friend
Illustration of endometriosis
  • Related Topics

  • Go Local

    • Services and providers for Endometriosis in the U.S.
  • National Institutes of Health

Also called: Endo

Endometriosis is a problem affecting a woman's uterus - the place where a baby grows when she's pregnant. Endometriosis is when the kind of tissue that normally lines the uterus grows somewhere else. It can grow on the ovaries, behind the uterus or on the bowels or bladder. Rarely, it grows in other parts of the body.

This "misplaced" tissue can cause pain, infertility and very heavy periods. The pain is usually in the abdomen, lower back or pelvic areas. Some women have no symptoms at all. Having trouble getting pregnant may be the first sign.

The cause of endometriosis is not known. Pain medicines and hormones often help. Severe cases may need surgery. There are also treatments to improve fertility in women with endometriosis.

Start Here