After the removal of ovarian cystadenoma, there may be sequelae such as inflammatory infection, abnormal ovulation and menstrual changes. 1. Inflammatory infection: if no attention is paid to cleanliness after surgery for ovarian cystadenoma, it may cause wound infection or pelvic inflammatory disease, which manifests as abdominal pain and other symptoms. 2. Abnormal ovulation: if the removal of ovary cystadenoma is too wide, it may cause excessive damage to it, thus affecting normal ovulation. 3. Menstrual changes: If the hormone secretion is abnormal after the surgery for ovarian cystadenoma, it may lead to changes in menstruation, and the endometrium will shed abnormally, resulting in prolonged menstruation and delayed menstruation. It is recommended to go to regular hospitals for the removal surgery of ovarian cystadenoma. If there is any discomfort after the surgery, it is recommended to go to the hospital in time and take reasonable methods of treatment under the guidance of the doctor, so as to promote the alleviation of the condition.