endometriosis

A chronic medical condition in which endometrial tissue, the tissue that lines the uterus, is found in locations outside the uterus. The misplaced tissue is often found on the ovaries, uterus, intestines, and the lining of the pelvis and abdominal cavity.

The most common symptoms of endometriosis are pain before and during periods that is much worse than normal menstrual cramps, pain with intercourse, and heavy or irregular vaginal bleeding. If the intestines or bladder are involved, symptoms may include constipation, diarrhea, pain with urination or blood in the urine.