The age of menopause in women is around 49-53 years old. Menopause before the age of 40 is called premature ovarian failure; menstruation after the age of 55 is caused by some gynecological diseases, which may be endometrial hyperplasia, endometrial polyps, submucosal fibroids, endometriosis, or some diseases caused by endocrine disorders. So whether a woman has menopause too early or too late, it is an abnormality. Amenorrhea and premature ovarian failure before the age of 40 makes women susceptible to aging and causes long-term complications, such as osteoporosis, atrophy of the vulvar genitalia, urinary tract infections, increased incidence of senile vaginitis, as well as causing long-term cardiovascular disease or increased incidence of Alzheimer’s disease, so timely menstrual adjustment is needed. If menorrhagia does not occur after the age of 55, it is important to actively look for the cause and exclude delayed menorrhagia caused by organic pathology.