Uterine cancer refers to malignant tumors that occur in the uterus, and the two common types are endometrial cancer and uterine sarcoma. However, the cause of such cancers is not clear. The incidence of uterine cancer is increasing year by year, and most of them occur in women over 50 years old. Women with risk factors are recommended to have regular medical checkups, early detection and early treatment, which can improve the cure rate and reduce the impact on life quality. I. Endometrial cancer: It is usually divided into estrogen-dependent (Type I) and non-estrogen-dependent (Type II). The occurrence of Type I may be due to the long-term effect of estrogen without progestin antagonism, causing endometrial hyperplasia and atypical hyperplasia, resulting in carcinogenesis. While the development of type II is not clearly related to estrogen and is mostly seen in older women.1, obesity, diabetes and hypertension: a large number of epidemiological surveys show that obesity, diabetes and hypertension are high-risk factors for inducing endometrial cancer, which is called the triad of endometrial cancer; 2, polycystic ovary syndrome: it is an endocrine disease that prevents the endometrium from undergoing normal cyclic shedding and continues to proliferate, which may develop into endometrial cancer; 3. Others: oral contraceptives are high-risk factors to induce endometrial cancer, such as estrogen, progesterone The influence of oncogene, oncogenes and genetic factors may also lead to endometrial cancer. 2. Uterine sarcoma: 1. history of pelvic radiation, race, occupation, etc.: the incidence of uterine sarcoma is strongly associated with pelvic radiation; the incidence rate of blacks is higher than that of other races; the incidence rate of leather industry is higher than that of other populations; 2. estrogen and progesterone: unmarried, early menarche, delayed menopause, abortion, oral contraceptives, obesity, etc. may increase the risk of uterine sarcoma; 3. other: chromosome recombination, chromosome Heterozygous loss, fusion gene and other chromosomal abnormalities may cause uterine sarcoma.