When a patient’s endometrial biopsy pathology is reported as endometrial cancer, first of all, imaging examinations such as nuclear magnetic examination are needed to understand the scope of the lesion. Except for a few patients who require preservation of reproductive function, most patients need to perform surgical pathological staging, i.e. total hysterectomy + double adnexal resection (fallopian tube ovary), preoperative imaging suggests endometrial cancer with deep muscle infiltration and enlarged lymph nodes, and preoperative endometrial biopsy pathology Those with high risk factors such as hypofractionated, plasmacytoid adenocarcinoma, clear cell adenocarcinoma or carcinosarcoma, and those with suspicious or enlarged pelvic or para-aortic lymph nodes palpable during surgery need to undergo pelvic lymph node and para-aortic lymph node dissection. Although pelvic lymph node and para-aortic lymph node dissection does not improve the patient’s prognosis, it can provide important prognostic information, clarify whether the lymph nodes are metastatic, and help determine whether adjuvant radiotherapy is needed after surgery. The excised tissues will be re-examined pathologically after surgery.