Why do girls have their periods?

Most women will have a feeling when they have their period, wondering why they have their period, especially when they have dysmenorrhea. Before menstruation classes, most women were very afraid of menstruation. They were really scared of bleeding every month. After taking physiology class, I understood that it is just uterine bleeding during the menstrual cycle unique to girls, and it is not that scary. So why do girls have periods?

1. The first signal for women to determine whether they are pregnant:

For married women of childbearing age who have regular menstruation in the past, if this menstruation is more than ten days late, the first thing they should consider is whether they are pregnant. After confirming pregnancy, those who are not planning to have a baby should take remedial measures as soon as possible; those who want to have a baby should pay more attention to nutrition, avoid exposure to tobacco, alcohol, pesticides, harmful chemicals, radiation, etc., and avoid taking drugs that can cause fetal malformations. The expected date of delivery can also be calculated based on menstruation, which is very beneficial for pregnancy health care and psychology.

2. It can help people detect diseases at an early stage

If a girl is over 18 and still has no menstruation, or if a woman has had normal menstruation in the past but has not had menstruation for more than three months (excluding those caused by pregnancy, breastfeeding, and menopause), she should be checked for lower reproductive tract atresia, congenital absence of uterus or uterine hypoplasia, ovarian tumors, pituitary tumors or dysfunction, endocrine or wasting diseases. In addition, changes in menstrual timing, volume, and accompanying symptoms are also important clues for discovering and diagnosing many diseases.

3. Avoid the harm of excessive iron

There is a hereditary disease called hemochromatosis, which can easily cause iron metabolism disorders in patients and cause excessive iron accumulation in the body. Excessive iron can slowly lead to lesions in the skin, heart, liver, joints, pancreatic islets, etc. One way to treat iron overload is to drain your blood regularly. The chance of organic damage caused by hemochromatosis in women is much lower than that in men, or even almost never occurs. The effect of menstruation - periodic blood loss just consumes excess iron.

4. Promote hematopoietic function

Menstruation causes the body to lose blood and produce blood regularly, which gives women's circulatory and hematopoietic systems a kind of "exercise" that men do not have. It makes women more able to withstand accidental blood loss than men, and can produce new blood more quickly to make up for the lost blood. Practice has shown that if men and women with the same weight and health status lose the same proportion of blood due to an accident, the man will die, while the woman has the possibility of being successfully rescued and eventually recover.