If the patient has reached the age of menopause, and the vaginal bleeding occurs after two years of menopause, this is not called normal menstruation, but abnormal vaginal bleeding. There are many reasons for this situation, mainly for the following reasons: First, the patient has a tumor of the endometrium and cervix, which leads to vaginal bleeding. In this case, the amount of vaginal bleeding may be large or small, and the duration may be long or short, and it is often accompanied by pain and discomfort in the abdomen or contact bleeding. The diagnosis can be clarified by doing cervical screening and hysteroscopy, diagnostic scraping and other tests. Secondly, we should consider the bleeding caused by gynecological benign neoplastic lesions, such as endometrial polyps, cervical polyps, etc. By doing gynecological ultrasound, hysteroscopy and other examinations, the diagnosis can be clear. Third, we should consider the possibility of gynecological inflammatory diseases, such as vaginal inflammatory diseases, pelvic inflammatory diseases, inflammatory diseases lead to mucosal or endometrial local infection necrosis and cause bleeding, mostly accompanied by discharge and a fishy smell, abdominal pain and other clinical discomforts. Fourth, we should consider that the patient may have taken some health products containing estrogen components, and the menstrual flow.