Why do women menstruate? 4 major benefits of menstruation

　　Generally speaking, the menstrual period refers to the mature period. female There is menstruation once every month, which is the menstrual period. Generally, a girl takes about 3 days to 7 days. During this period, the girl’s Uterus A certain amount of blood is discharged through the vagina, and this blood is very clean. But many people don’t understand why women have menstruation? What are the benefits of menstruation for women? Next, I will introduce them one by one for your reference.

　　Why do women menstruate?

　　This is related to cyclic changes in the endometrium. The endometrium is divided into two layers. The surface layer is called the functional layer. The changes in the menstrual cycle mainly occur in this layer. This layer must be shed and repaired every menstrual cycle. ； The layer close to the muscles is called the basal layer. After the functional layer falls off during the menstrual cycle, a new functional layer is generated from this layer. The endometrium undergoes periodic changes with the ovaries ovulating.

　　After a girl is born, there are many primordial follicles in her ovaries. After entering puberty, one follicle usually matures every month. The eggs in mature follicles are discharged from the ovaries into the abdominal cavity, which is called ovulation. The day of ovulation is generally in the middle of menstruation, that is, about 14 days before the next menstruation. Before ovulation, the ovary produces estrogen during the development of follicles. The endometrium is affected by estrogen and gradually thickens to about 2 mm. At this time, the glands in the endometrium grow, the arteries become thicker and curved, and the connective tissue proliferates. After the follicle ruptures and releases the egg, it immediately shrinks to form the corpus luteum. In addition to estrogen, the corpus luteum also secretes progesterone. Under the action of estrogen and progesterone, the endometrium continues to thicken to about 5 mm. At this time, the endometrial glands further grow, the secretions of gland cells increase, the arteries become more dilated and congested, and the fluid in the connective tissue increases.

　　This change in the endometrium is to prepare for the entry of the egg after fertilization. If the egg is fertilized, the fertilized egg will be implanted (implanted) in the soft, thick, and vascular endometrium, and the endometrium will continue to grow and develop. At the same time, under the action of the corpus luteum, it will not fall off, and there will be no menstruation. If the egg is not fertilized, the corpus luteum will gradually degenerate, the secretion of estrogen and progesterone will decrease sharply, and the endometrium will suddenly lose the role of hormones. The blood vessels will continue to contract, causing ischemia of the functional layer of the endometrium, causing tissue necrosis. Then the arteries will expand, causing acute congestion of the capillaries, and the necrotic functional layer of the endometrium will peel off and be discharged together with blood and mucus secreted by the cervix. This is menstruation.

　　The menstrual period usually lasts 3-5 days. During this period, the functional layer of the endometrium peels off, causing intrauterine wounds. 6-14 days after menstruation, the basal epithelial cells of the endometrium divide and proliferate, move toward the ulcerated wound, and gradually repair and form new functional layers. At this time, there are new egg cells in the ovary that are growing, maturing, ovulating, corpus luteum appearing, and producing sex hormones, causing the endometrium to proliferate, peel off, and bleed again, thus causing another menstruation. The ovaries discharge once a month, which results in menstruation once a month. It should be noted that menstruation is normal, healthy Women's physiological activities, it also represents women's health status.

　　4 major benefits of menstruation for women

　　1. Promote hematopoietic function.

　　Menstruation causes women to lose a large amount of blood, so that women's hematopoietic function can be regularly improved exercise , which makes women more likely than male It is more able to withstand accidental blood loss and can produce new blood more quickly to make up for the lost blood. Practice has proven that if men and women of the same weight and health status lose the same proportion of blood due to accidents, men will die as a result, while women have the possibility of successful rescue and eventual recovery.

　　2. It can directly reflect whether a woman is pregnant.

　　If a woman's menstruation is delayed for more than ten days and does not come, she should first consider whether she is pregnant. After confirming pregnancy, those who are not planning to give birth should take remedial measures as soon as possible ； Those who want to have children should pay more attention to nutrition and avoid exposure to tobacco, alcohol, pesticides, harmful chemicals, rays, etc., and avoid taking drugs that can cause fetus Abnormal drugs. The expected date of delivery can also be estimated based on menstruation, which is very beneficial to health care and psychology during pregnancy.

　　3. It can prevent excessive iron content.

　　In medicine, there is a hereditary condition called hemochromatosis disease , the chance of organic damage caused by hemochromatosis in women is much smaller than that in men, or even almost never occurs. The main reason is because of menstruation, because the cyclic blood loss during menstruation consumes excess iron. Hemochromatosis can easily cause iron metabolism disorders in patients and lead to excessive accumulation of iron in the body. ； Iron excess can slowly lead to skin , heart, liver, joints, pancreatic islets, etc. One way to treat iron overdose is to regularly drain a certain amount of blood.

　　4. It allows women to detect diseases earlier.

　　If a girl is over 18 years old and still has no menstruation, or if a woman has had normal menstruation in the past and has stopped menstruating for more than three months (excluding pregnancy, lactation, menopause (caused by), it is necessary to check whether there is atresia of the lower reproductive tract, congenital absence of uterus or uterine dysplasia, ovarian tumors, pituitary tumors or hypofunction, endocrine or wasting diseases. In addition, changes in the time, amount, and accompanying symptoms of menstruation are also important clues to the discovery and diagnosis of many diseases, so we must pay attention to menstruation.