Endometriosis is defined as the presence of endometrial glands and stroma outside the uterine cavity. Many theories have been proposed to explain the pathophysiology of endometriosis .A definitive diagnosis can be made only by means of laparoscopy. Medical treatment designed to interfere with ovulation. Surgical treatment is the preferred initial treatment for infertility caused by endometriosis . Bilateral oophorectomy and hysterectomy are treatment options for patients with intractable pain, if childbearing is no longer desired.