Bleeding after menopause is mainly caused by the following reasons: First, the most common one is senile vaginitis. After menopause, women’s ovarian function has declined and estrogen levels are declining rapidly. When the inflammation occurs in the vagina, it can cause a large number of bleeding spots on the vaginal mucosa, which can lead to bleeding and possibly erosion of the vaginal mucosa, which can be diagnosed through gynecological examination and routine tests of the white belt. Secondly, to rule out the possibility of cervical cancer and endometrial cancer, it is recommended to do cervical cancer screening and ultrasound examination to understand the thickness of endometrium. If the thickness of the endometrium is greater than 0.5cm after menopause, it may be caused by lesions, so diagnostic scraping is recommended and treatment is given according to pathological diagnosis.