Lower back pain after goserelin injection after chocolate cyst surgery is considered to be a normal phenomenon, which may be caused by autonomic dysregulation, or bone loss and other causes. After surgery for chocolate cysts, treatment with gonadotropin-releasing hormone analogs is needed, mainly with goserelin injections, which can lead to a decrease in the level of ovarian hormones and temporary amenorrhea, but there will be some adverse reactions. Decrease in hormone levels will appear similar to menopausal symptoms, patients will experience autonomic dysfunction, mainly manifested as sleep disorders, palpitations, dizziness, easy to fatigue, memory loss, etc., and some may also experience lumbago. Osteoporosis can occur easily and also cause lumbago, which can disappear after stopping the medication. Bone loss usually takes some time to recover gradually. After the chocolate cyst surgery after the goserelin injection back pain should promptly consult a doctor to identify the cause, symptomatic treatment. The serum estrogen level should be closely monitored during the use of Goserelin injection.