The effects of bilateral ovarian teratoma surgery on fertility are: it may affect ovarian ovulation and fertilization. 1. Affect ovarian ovulation: female friends with bilateral ovarian teratoma, the doctor will choose teratoma excision surgery or excision of the affected side of the adnexa according to the patient’s specific situation, will try to retain the normal ovarian tissues, under normal circumstances, teratoma excision will not affect the function of the ovaries. However, if the teratoma is relatively large, resulting in the ovary is almost completely occupied by teratoma, can not purely eliminate the teratoma and perform surgery to remove the affected side of the adnexa, then this situation is very likely to affect the ovarian function and normal ovulation. 2. Impact on conception: patients with bilateral teratoma surgery may have pelvic adhesions, which may lead to adhesions and blockage of the fallopian tubes, thus affecting conception. It is recommended that female friends with bilateral ovarian teratoma should be given appropriate treatment under the guidance of the doctor, and if prolonged infertility occurs after the operation, they should go to the hospital as soon as possible to find out the reasons.