Anovulatory cycles, obesity, estrogen-producing ovarian tumors, low parity or nulliparity, and exogenous estrogen therapy can all increase the risk for endometrial adenocarcinoma in this manner.

• 无排卵性月经周期、肥胖、分泌雌激素的卵巢肿瘤、未育、外源性雌激素治疗，都能增加子宫内膜腺癌发生的危险。