Reverse menstruation refers to the appearance of vaginal bleeding again after menopause, which is an abnormal phenomenon, and is commonly seen in the clinic for senile vaginitis, cervical cancer and endometrial cancer, the appearance of symptoms should be taken seriously, and go to the hospital as early as possible to do the appropriate examination. When senile vaginitis appears, there will be a large number of bleeding spots on the vaginal wall, resulting in bleeding, it is recommended to actively treat senile vaginitis. In addition to know whether there is any abnormality in the localization of the cervix, it is recommended to do cervical cancer screening, and according to the results of the screening, then decide whether to continue the treatment in the next step. Ultrasound is recommended to rule out uterine lesions, as well as endometrial lesions, which may cause postmenopausal vaginal bleeding. Diagnostic curettage is also needed if necessary, to send for pathologic tests, and then, based on the pathologic diagnosis, the appropriate treatment.