The return of menstruation after menopause is medically known as menorrhagia. The cause of menorrhagia can only be determined after detailed examination and may not necessarily be cancer. Within one year after menopause, there may be occasional small amount of vaginal bleeding. At this time, the ovarian function has not completely degenerated and can still secrete estrogen, which can lead to the proliferation of endometrium and a small amount of vaginal bleeding. As time goes by, the ovarian function declines, hormone secretion becomes less and less, and the organs in the body begin to atrophy. This leads to a decrease in the resistance of the vagina and uterus to disease, which can easily cause infections of the cervix and vagina. If the infection is severe, irregular bleeding from the vagina may also occur. It is also important to be alert to the occurrence of malignant tumors. For example, cervical cancer, endometrial cancer, etc. In case of malignant tumors, irregular vaginal bleeding, bright red in color, often accompanied by bloody or plasma discharge, may not improve despite the application of hemostatic drugs. If you have the above symptoms, you should go to the hospital for relevant examination in time. Identify the cause of the disease and then give symptomatic treatment. Therefore, rebleeding after menopause does not necessarily mean cancer. It is necessary to improve the relevant examination in regular hospital to find out the cause of the disease and then give symptomatic treatment.