Endometriosis lesions are diagnosed when they infiltrate normal tissue to a depth of more than 5 mm, and can infiltrate the rectum, bladder, ureter, small intestine, and also inside the muscles of the pelvic wall. The main manifestations are dysmenorrhea, lower abdominal pain, lower extremity pain, painful intercourse and other kinds of pain, which is even more painful on examination, and nodular lesions can be palpated. It is usually better to have a complete surgical excision, unless the patient is eager to have children. We have created the “eight” resection method, which can remove the lesions more efficiently, safely and completely. Of course, medication is also used in combination.