The need to remove the ovaries during surgery for teratoma is determined by the following reasons: 1. If intraoperative frozen pathological sections reveal a malignant degree, the ovaries need to be removed at the same time, and the uterus and fallopian tubes also need to be removed. 2. If the patient has no fertility requirements and has entered menopause, it is recommended that the ovaries be removed at the same time. 3. 4. Of course, if the teratoma is benign and the woman is of childbearing age, the teratoma can be removed and some of the ovarian tissue can be preserved.