The advantage of menstruation is 1: it can promote the hematopoietic function of human body. The importance of blood to our human body can be imagined. If the human body loses too much blood, the hematopoietic function of the human body will be hindered, thus threatening our lives. Women's menstruation will lead to a lot of bleeding in a certain period of time, but it is a normal physiological activity, which will affect the hematopoietic function in the body, make women's blood circulation better, and improve their tolerance to accidental blood loss. Because a large number of data show that the survival rate of men is lower than that of women when men and women with similar physical conditions lose the same amount of blood at the same time. The second benefit of menstruation: it can be used as a signal of pregnancy. It is certain that women know whether they are pregnant or not, but do you think we have so much time and money to go to the hospital frequently? Imagine going to the hospital blindly without any symptoms, which not only wastes time, but also brings economic burden and heavy ideological pressure to yourself. This is very unrealistic, and women's menstruation can be used as the best signal to judge pregnancy. Women with regular menstruation may be pregnant when they find that the menstrual delay exceeds 10. At this time, you can go to the hospital to determine whether you are pregnant. If you plan to have children, you can better prepare for delivery. If you choose not to have children, you can choose the best time to have an abortion in time. The third benefit of menstruation: you can find diseases. Many people say that disease is not the most terrible. The most terrible thing is that you can't find the disease and treat it in time. Menstruation, as a woman's closest friend, is of course the most important measure to test our women's health. If the female 18 or above, and has not had menstrual cramps, then menstrual abnormalities, menstrual blood abnormalities, prolonged menstruation, less menstrual flow or even amenorrhea. All these mean that women have physical problems and need to go to the hospital for examination and treatment as soon as possible. The fourth benefit of menstruation: it can avoid too much iron damage. Iron, if absorbed in large quantities by our human body, will cause damage to many organs of the human body. In particular, some genetic diseases, such as hemochromatosis, will lead to too much iron in the body. The treatment of this disease is that the patient must discharge a certain amount of blood. When women come to menstruation, they will excrete excess iron, so the probability of women suffering from this genetic disease is much smaller than that of men.