Surgery for teratoma needs to choose different surgical methods according to the different parts of tumor growth, such as simple tumor stripping surgery, radical tumor resection combined with lymph node dissection, or tumor resection with preserving one side of ovary or preserving testis, and so on. 1. Ovarian teratoma patients, benign tumor choose simple tumor stripping surgery, malignant tumor with fertility requirements can be given to the affected side of the ovary together with tumor resection, no fertility requirements can be given to the tumor radical resection combined with abdominal lymph node dissection. 2. Testicular teratoma can be given to benign tumors with testicular preservation, and malignant tumors can be given to radical testicular resection combined with retroperitoneal lymph node dissection. 3. Mediastinal teratoma is usually selected thoracoscopic tumor resection. 4. benign teratoma of the brain choose tumor simple excision surgery, malignant tumors can be excised to do radical resection, surgical difficulties can be done cerebrospinal fluid drainage surgery. In summary, different parts and different types of teratomas have different surgical methods. It is recommended that patients go to regular hospitals as soon as possible, and choose the right operation method under the guidance of doctors and in combination with their own conditions.