Menopause amenorrhea half a year and then menstruation may be ovarian recession, gynecological diseases and malignant tumors and other reasons. 1. Ovarian dysfunction: women do not have menstruation for more than one year before it is called menopause, menopausal ovarian dysfunction, will cause hormonal changes, there may be occasional follicular development, amenorrhea for six months to menstruation, if it is caused by the decline in ovarian dysfunction, don’t worry too much. 2. Gynecological diseases: if menopause half a year and menstruation, and more menstrual flow, then consider whether there are uterine fibroids and endometrial polyps and other gynecological diseases, you can go to the hospital to do ultrasound to determine. 3. Malignant tumors: menopause is the high incidence of malignant tumors in women, half a year of amenorrhea and bleeding, in addition to follicular development, we should pay attention to whether there is a possibility of malignant tumors, such as endometrial cancer, and we suggest that women should go to the hospital for a detailed examination. There may be other reasons for menopausal amenorrhea for half a year and then menstruation, so women are advised to go to the hospital for a detailed examination to clarify the reasons.