Endometrial cancer is the most common pelvic gynecological cancer in so-called developed countries, with 320,000 new cases annually, including more than 1,500 in Belgium. It preferentially affects postmenopausal women. Overall survival at 5 years is 76% but is 95% for early forms, which represent more than 70% of diagnoses. The main risk factors are obesity, diabetes and tamoxifen intake for breast cancer, which explains the increasing incidence. Half a million new annual cases are expected in 2035.