Endometrial cancer is a type of malignant tumor, and malignant tumor is a broad concept that encompasses endometrial cancer. Endometrial cancer is a malignant tumor that originates in the lining of the uterus. Most endometrial cancers in the very early stages are completely asymptomatic, and as the disease progresses, vaginal bleeding, vaginal discharge, pain, and even symptoms of metastasis to the lungs may appear later. Malignant tumor is a general term that includes three categories of cancer, sarcoma and carcinosarcoma, all of which are more malignant. Endometrial cancer is one of the malignant tumors of the female genitalia. Malignant tumors have become one of the most important diseases that threaten human life and health. If detected early and actively treated, it can effectively slow down the progression of the disease and improve the survival rate.