A woman enters the perimenopausal period after she is over 40 years old. If menstrual disorders occur at this time, it is possible that menopause will occur. Normally, irregular menstruation occurs and menopause will occur after 3-5 years, so it is a normal phenomenon. If excessive menstruation and prolonged periods occur, treatment must be carried out as soon as possible. However, if there is a prolonged menstrual cycle or a low menstrual flow, it is possible to observe, because this condition does not have a major impact on the body. However, if the bleeding is heavy and the menstrual period is prolonged, it may cause anemia, so menstrual regulation treatment is necessary.