Why do girls have menstruation?

Every adult female will experience vaginal bleeding once a month after her ovaries mature. We call this condition menstruation. So why do girls have menstruation? I believe that many people do not understand. Many times, they wonder why girls have menstruation after they mature, but boys do not! Today we will take a closer look at why girls have menstruation? Please read on with me.

Knowledge about why women have menstruation. Many times we wonder why girls have menstruation but boys don’t, and why so much blood is lost during menstruation, why is there still blood in the body? These questions accompany a girl from a little girl to a mother. When her daughter has her menstruation, she is really at a loss, but she is a mother, so she must understand some basic knowledge of menstruation.

To understand the common knowledge of menstruation, we must first understand the structure and physiological functions of the female reproductive organs in order to explain this topic. The female internal reproductive organs consist of the ovaries, uterus, and fallopian tubes. The main function of the ovaries is to produce eggs and synthesize ovarian hormones, while the uterus and fallopian tubes are reproductive organs. The ovaries contain hundreds of thousands of follicles, each of which contains one egg. Before puberty, the follicles are essentially non-functional. During puberty, under the action of gonadotropin from the anterior pituitary gland, immature follicles gradually develop and synthesize estrogen. When the follicle matures and ovulates, the ovarian wall collapses, the cells become larger and yellower, and are called the corpus luteum. It not only synthesizes estrogen but also produces progesterone. As the ovaries change, the endometrium is also affected and undergoes corresponding cyclical changes. Estrogen causes the endometrium to thicken, the endometrial cells to increase in number and size, and the tubes to become more tortuous and spiral, which is called proliferative endometrium. Common knowledge of menstruation: After ovulation, due to the combined effects of estrogen and progesterone, the endometrium becomes edematous, the glands produce a large amount of mucus and glycogen, and the thickness of the endometrium increases from one millimeter to six millimeters, which is called the secretory endometrium. If the egg released at this time is fertilized, the fertilized egg is transported to the uterus through the fallopian tube for development, which is called pregnancy. The pregnancy tissue synthesizes a chorionic gonadotropin, which supports the continued development of the corpus luteum of the ovary. If the egg is not fertilized, the corpus luteum will atrophy and stop secreting estrogen and progesterone about 14 days after ovulation. At this time, the blood vessels in the endometrium will contract, the endometrium will necrotize and fall off, causing bleeding and forming menstruation. Therefore, the length of the menstrual cycle depends on the length of the ovarian cycle, which is generally thirty days, but varies from person to person, and may be forty-five days, or even three months or six months as a cycle. As long as it is regular, it is generally considered normal menstruation. The bleeding period is generally seven days, and the total amount of bleeding for each menstruation is 50 ml. Some people think that a menstrual volume of more than 80 ml is a pathological condition.

Now you know why girls have menstruation! Because after our ovaries mature, they use this method to eliminate toxins from the body. You also know why there are no boys anymore. Because the reproductive organs of girls and boys are different, boys do not have such a detoxification pattern. Now that you know why girls have their periods, don’t make blind guesses. You must follow scientific explanations to understand.