Ovarian teratomas are mostly benign tumors, and it is usually sufficient to undergo tumor excision or unilateral oophorectomy. However, ovarian teratomas can become malignant, and in such cases, corresponding chemotherapy treatment should be used after surgery based on the condition.

Even after chemotherapy, malignant teratomas may recur. If the malignant teratoma recurs, further surgeries can be performed. Each surgery can reduce the malignancy of the teratoma, so surgery combined with chemotherapy is very effective for the treatment of malignant teratomas.