B. Risk factors for endometrial hyperplasia are the same as those for endometrial cancer. The risk for both disorders is increased tenfold in women who use unopposed estrogen-replacement therapy.

• 子宫内膜不典型增生的危险因素与子宫内膜癌的危险因素相同。在使用无拮抗的雌激素替代治疗的妇女中患这两种疾病的概率会增加10倍以上。