Ovarian teratoma is a kind of tumor disease of ovary, there are benign and malignant two kinds, with benign mostly, usually not serious, if malignant, more serious. It is recommended to consult the doctor in time after the discovery of ovarian teratoma, and perform surgical treatment under the guidance of the doctor. Ovarian teratoma is divided into mature teratoma and immature teratoma, mature teratoma is benign teratoma, immature teratoma is malignant teratoma. Ovarian teratoma is a kind of common ovarian germ cell tumor, mostly occurring in young women, which is formed due to the abnormal differentiation of ovarian germ cells, and there are specific manifestations found through ultrasound, such as thickening of the capsule wall, and dough-like strong echoes inside the capsule. Benign ovarian teratoma can be treated with laparoscopic cyst excision to remove the lesion and control the condition. Malignant ovarian teratoma is usually performed ipsilateral ovariectomy. It is recommended that patients with ovarian teratoma should be diagnosed and treated early, and the tumor markers should be rechecked regularly. They should rest more and get enough sleep.