Endometriosis is the presence of endometrial tissue (the normal uterine lining) in abnormal locations such as the tubes, ovaries and peritoneal cavity, often causing painful menstruation and infertility.
Endometriosis is the presence of endometrial tissue (the normal uterine lining) in abnormal locations such as the tubes, ovaries and peritoneal cavity, often causing painful menstruation and infertility.