Endometriosis is a disease caused by endometrial tissue with growth capacity and function being planted outside the uterine cavity, which is medically classified as dysmenorrhea and infertility. 1. Dysmenorrhea is the most prominent symptom in patients with endometriosis, which can occur before or after menstruation. Severe dysmenorrhea can be unbearable for patients, and the pain can worsen with the menstrual cycle; 2. Secondly, it is manifested by increased menstrual flow, prolonged menstruation, irregular bleeding after menstruation, and secondary anemia caused by prolonged bleeding. Endometriosis is a clinical manifestation of endometriosis. When endometriosis occurs in the rectal fossa or vaginal rectal septum, it will cause painful intercourse due to swelling of the surrounding tissues and aggravate the pain before menstruation; 4. This can lead to infertility. The gold standard is laparoscopic surgery to preserve the normal ovarian tissue as much as possible. The chance of recurrence is not that great.