阴道不规则出血是妇科常见的临床症状,其原因甚多,除外妊娠因素,子宫内膜或宫腔内病变是主要原因。内分泌失调、宫内节育器(IUD)、生殖道感染、肿瘤等均可引起阴道不规则出血。而绝经后妇女的阴道不规则出血,往往又是子宫内膜恶性变的征兆。本文就一些临床实例进行回顾性分析, Irregular vaginal bleeding is a common gynecological clinical symptoms, for many reasons, except for pregnancy, endometrial or intrauterine lesions is the main reason. Endocrine disorders, intrauterine device (IUD), genital tract infections, cancer, etc. can cause irregular vaginal bleeding. The irregular vaginal bleeding in postmenopausal women is often a sign of malignant transformation of the endometrium. This article reviews some clinical cases retrospectively,