Is an often painful disorder in which tissue that normally lines the inside of your uterus — the endometrium — grows outside your uterus. Endometriosis most commonly involves your ovaries, fallopian tubes and the tissue lining your pelvis.
Pain in the lower abdomen before and during menstruation
Cramps one or two weeks around menstruation
Heavy menstrual bleeding or bleeding between periods
Pain following sexual intercourse
Discomfort with bowel movements
Lower back pain that may occur at any time during your menstrual cycle