Ovarian teratoma should not be treated conservatively and should be treated aggressively with surgery. Ovarian teratoma is a kind of germ cell-derived tumor growing on the ovary, the benign, malignant and the degree of malignancy of the tumor depends on the degree of tissue differentiation, except for mature teratoma which is benign, the rest of them are malignant tumors. There is no effective conservative treatment for ovarian teratoma, and the common treatment is surgical resection, supplemented by chemotherapy. If ovarian teratoma is not resected in time, as the patient grows older, the teratoma will slowly grow and compress the surrounding tissues and organs, causing a series of symptoms, and benign teratomas have the risk of being transformed into malignant teratomas in the organism. Patients with ovarian teratoma should go to the hospital in time and receive standardized treatment under the doctor’s advice and guidance.