Treatment methods for endometriosis include conservative treatment and surgical treatment. If the patient's symptoms are relatively mild, the dysmenorrhea is not very severe, and there is no occurrence of excessive menstruation or prolonged menstrual period, conservative treatment can be applied. Common conservative treatment methods include oral contraceptive pills, and a levonorgestrel-releasing system can be placed inside the uterine cavity. If the patient has reproductive demands and the symptoms are more severe, or if there is a chocolate cyst on both ovaries, surgical treatment can be performed, but the recurrence rate after surgery is also relatively high. (The use of medication should be under the guidance of a doctor.)