1. Sudden menopause: A few women had normal menstrual cycles and periods before, but now they suddenly go through menopause; There are also some women who have normal menstrual cycles. Occasionally, the amount of menstruation gradually decreases, and then menstruation suddenly stops. Sudden menopause is rare in menopausal symptoms of irregular menstruation in women, but it must be paid attention to. If symptoms appear, you should go to the hospital for examination and treatment in time.

2, occasional menstruation: women will have a long interval in the menstrual cycle of menopause, from the normal 20-30 days to 2-3 months or longer to have menstruation. The menstrual flow can be normal or reduced, and the interval is gradually extended to 4 ~ 5 months or half a year before it can pass once or even stop completely.

3, cycle disorder: cycle disorder is mainly manifested as irregular vaginal bleeding after the normal menstrual cycle at the beginning, and sometimes the menstrual period is prolonged or becomes persistent vaginal bleeding, and the drip continues to reach 1 ~ 2 months; There may also be a large amount of vaginal bleeding, and patients may have symptoms such as anemia, sallow complexion, general weakness, palpitation and shortness of breath. In severe cases, hemoglobin can be significantly reduced. Some have recurrent bleeding, and menstruation stops completely after 1 ~ 2 years.