The treatment of ovarian malignant tumors differs according to the type of pathology. The first step in surgery is detailed investigation, including cytological examination of abdominal washings or peritoneal fluid, palpation of the diaphragm, pelvic and abdominal organs, pelvic lymph nodes and retroperitoneal lymph nodes for accurate tumor staging. The surgical approach for early stage patients is divided into full staging surgery and staging surgery to preserve reproductive function. The scope of full-stage surgery includes bilateral adnexal, uterine, and greater omental resection and pelvic and retroperitoneal lymph node dissection. For advanced patients with extensive metastases in the pelvic cavity, tumor cytoreductive surgery is recommended whenever possible. Chemotherapy Since ovarian malignant tumors, especially epithelial carcinoma, spread very early, the lesions cannot be removed in most cases during surgery, and the effect and application of radiotherapy are also very limited, so systemic chemotherapy is an important adjuvant treatment method. Especially for malignant germ cell tumors, standardized chemotherapy can significantly improve the survival rate of patients. In some advanced patients, the mass can shrink after chemotherapy, which can create favorable conditions for satisfactory tumor reduction during surgery. How long can ovarian cancer live in advanced stage? The radiation sensitivity of ovarian malignant tumors varies greatly. Endodermal sinus tumor, immature teratoma and embryonal carcinoma of ovary are the least sensitive, ovarian epithelial carcinoma and granular cell carcinoma are moderately sensitive, and asexual cell tumor is the most sensitive, which can be controlled mostly by radiotherapy after surgery. However, due to the fact that malignant germ cell tumors such as asexual cell tumors are mostly adolescents and chemotherapy is effective, and the side effects of abdominopelvic radiotherapy are large, radiotherapy has rarely been used for ovarian malignant tumors.