1　绝经后子宫出血的定义及发生率　　绝经后子宫出血的定义与绝经的定义密切相关 ,只有明确绝经的定义 ,才能正确定义绝经后子宫出血。绝经是指卵巢功能衰退引起的月经闭止[1,2 ] 。根据 1994年世界卫生组织人类生殖特别规划委员会推荐 ,绝经的定义为妇女一生中的最后一次月经 Definition and incidence of postmenopausal uterine bleeding Definition of postmenopausal uterine bleeding is closely related to the definition of menopause, and only the definition of menopause can be defined in order to correctly define the postmenopausal uterine bleeding. Menopause refers to the decline of ovarian function caused by menstruation [1,2]. According to the recommendations of the WHO Special Commission on Human Reproduction of 1994, menopause is defined as the last menstrual period in a woman’s life