How many years does it take for endometrial cancer to develop?

The formation time of endometrial cancer usually takes 5-15 years, and the specific progression rate is related to factors such as abnormal hormone levels, obesity, and diabetes.

The development of endometrial cancer is a multi-stage progressive process. It takes a long time for most patients to go from normal endometrium to atypical hyperplasia to cancer. Long-term estrogen stimulation without progesterone antagonism is the main cause. For example, in patients with polycystic ovary syndrome, the continued effect of estrogen due to ovulatory disorder may accelerate endometrial lesions. The activity of aromatase in adipose tissue of obese people is increased, which promotes the conversion of androgens into estrogens, further increasing the risk. Insulin resistance and hyperinsulinemia in diabetic patients may participate in the carcinogenesis process by promoting cell proliferation. Hypertension and metabolic syndrome may also affect the intimal microenvironment through chronic inflammatory responses. Genetic factors such as DNA mismatch repair gene mutations in patients with Lynch syndrome may shorten the time to cancer to 3-5 years.

It is recommended that women over the age of 35 undergo gynecological examinations every year, especially if they experience abnormal uterine bleeding. Maintaining a healthy weight, controlling blood sugar and blood pressure, and exercising moderately can help reduce the risk. Postmenopausal women should avoid supplementing estrogen on their own and need to undergo hormone replacement therapy under the guidance of a doctor.