It is not normal to have menstruation again after menopause for one year, which may be caused by endometrial cancer, cervical cancer and other diseases, and you should seek medical treatment in time. 1. Endometrial cancer: manifested as postmenopausal vaginal bleeding with little bleeding, usually choose surgery to remove the uterus, but radiotherapy or progesterone treatment can also be chosen. 2. Uterine cervical cancer: manifested by irregular vaginal bleeding after menopause, it can be divided into exogenous cancer and endogenous cancer, with the former bleeding more frequently and at an early stage, and the latter bleeding at a later stage, and the treatment usually chooses the comprehensive treatment of surgery followed by radiotherapy and chemotherapy. The recurrence of menstruation one year after menopause may be due to abnormal vaginal bleeding, and one should go to regular hospitals in time and adopt appropriate treatments under the guidance of professional doctors to improve the quality of life.