Surgery for teratomas in the elderly involves removal of the affected adnexa or complete removal of the teratoma. Teratomas are tumors of germ cell origin, most of which are benign, but a very small number of teratomas have the potential to become malignant, especially as they age. In the case of teratoma in the elderly, it is recommended that surgical treatment should be carried out under the guidance of a specialized doctor. In the case of teratoma of the ovary, the affected side of the ovary can be removed. In the case of teratoma in other parts of the body, the surgery involves the complete removal of the teratoma from the corresponding part of the body. After the teratoma is removed, further pathological examination is needed to determine whether the teratoma is benign or malignant and whether follow-up treatment is needed. If an elderly person has a teratoma, it is recommended that he or she seek medical attention promptly and be sure to undergo treatment under the guidance of a doctor.