Whether chemotherapy is needed after endometrial cancer surgery is decided according to different stages of patients and whether there are high-risk factors leading to recurrence and metastasis of endometrial cancer. For early stage endometrial cancer, if high risk factors such as poorly differentiated carcinoma or deep myometrial infiltration are ruled out, only radical surgery is usually required, and adjuvant chemotherapy is usually not needed after surgery. If early endometrial cancer is poorly differentiated cancer or deep infiltration of muscle layer, or if endometrial cancer is in middle or late stage, the risk of recurrence and metastasis after surgery is higher, therefore, adjuvant chemotherapy or radiotherapy is needed to reduce the chance of recurrence and metastasis, so as to increase the cure rate of the patients and improve the prognosis.