Endometrioid adenocarcinoma grade 2 represents two meanings, one is endometrioid adenocarcinoma, which represents a pathological type of endometrial cancer. grade 2 represents the degree of differentiation, that is, the degree of malignancy, which is clinically classified into 3 grades: 1, 2, 3, the larger the number, the higher the degree of malignancy. grade 2 is the moderately differentiated one, which is a little less malignant than grade 3. Clinically, the prognosis of endometrial cancer is determined by not only grading, but also staging. Staging is also divided into four stages, stage 1, stage 2, stage 3 and stage 4. Therefore, the prognosis of endometrial cancer is not only related to the grading but also related to the stage.