Endometriosis is a painful disorder in which the growth of tissue similar to the tissue that normally lines the inside of the uterus grows outside the uterus. Symptoms of endometriosis include pain during intercourse, excessive bleeding, painful menstruation, pain during urination and bowel movements, and infertility."Obstetrics & Gynecology"
Causes of endometriosis include peritoneal cell transformation, immune system disorders, the transformation of embryonic cells, the transport of endometrial cells, the implantation of the surgical scar, and retrograde menstruation.
One of the most common complications of endometriosis is infertility. Endometriosis also increases the risk of ovarian cancer and endometriosis-associated adenocarcinomas.