Postoperative injections are usually necessary for chocolate cysts. Chocolate cyst is a kind of endometriosis, although it is a benign lesion, but it is very easy to invade the surrounding tissues and the recurrence rate is high, so in order to consolidate the efficacy of the treatment and control the recurrence after the operation, it is usually necessary to take injections, injections of medicines to assist in the treatment. The postoperative injections for chocolate cysts are gonadotropin-releasing hormone agonists, i.e., GnRH-a, commonly used drugs such as leuprolide acetate and goserelin injection, etc., which are mainly designed to inhibit the function of the ovaries and keep the estrogen and progesterone at a low level, so as to play the role of temporary pharmacological ovariectomy, thus reducing the recurrence of the disease. If patients experience uncomfortable symptoms after the postoperative injection treatment, they should seek medical advice as soon as possible, and be targeted by the doctor according to the specific situation, so as to avoid adverse consequences.