Ovarian teratomas are divided into benign and malignant types. If the teratoma is malignant, then it is a type of cancer. If it is benign, it is not cancer; it is just a tumor. The malignancy of a tumor is not as high as that of cancer. Therefore, it is necessary to determine its pathological type. After removing the teratoma, it should be sent to the pathology department for examination to clearly determine whether it is benign or malignant. For benign teratomas, postoperative follow-up observation is sufficient. However, if the teratoma is malignant, the scope of the surgery should be conducted according to the protocols for ovarian cancer, and chemotherapy is required after surgery.