Is menarche early or early at age 9? What is the average age of women having menarche?

　　female menarche Menarche is also menarche, which is the first menstrual period. So at what age does a woman have her first period?

　　When I was 9 years old, I was already the third person in my class to have my menarche.

　　“My baby is 9 years old and has menarche. Although she is small, she is already the third child in the class. Is this normal? ”Her mother, Ms. Lin, could no longer hold back and asked questions urgently. It is understood that this girl is in the third grade this year. She is about 135 centimeters tall and weighs 38.3 kilograms. Her small arms and legs look very strong, her cheeks are full of flesh, and she has two small dimples when she smiles.

　　Doctors say that for girls, when "menstrual period" comes, less than 10% of their height potential is left. Their height is limited, and they can only grow 2 to 8 centimeters, with an average of only 5 centimeters.

　　As he spoke, he took out the girl's bone age film and showed it to reporters: "Look, her bone age is already 12 years old, which is higher than her actual age. Judging from the epiphyseal closure, another 8 centimeters is already the limit. ”

　　The advice given by experts to girls is: eat more vegetables and less meat, a glass of milk and an egg every day, don’t eat one hour before going to bed, and jump rope 1,000 times a day. But the girl's original diet was to eat two bowls of rice for one meal. Fried chicken steak was her favorite and she had to eat it 4-5 times a week.

　　Average age of female menarche

　　Women's menarche usually occurs during puberty, usually between 11 and 19 years old. A few menstruation occurs earlier than 10 years old or later than 20 years old.

　　Menstrual cramps and ovaries Uterus related to the periodic changes of the membrane. Starting from puberty, egg cells in the ovaries mature and are excreted. At the same time, the ovaries secrete estrogen and progesterone, which promote the thickening of the endometrium and the proliferation of blood vessels, creating conditions for the fertilized egg to develop in the uterus. If the discharged eggs are not fertilized, the secretion of estrogen and progesterone from the ovary will quickly decrease, causing endometrial tissue to become necrotic and fall off, and blood vessels to rupture and bleed. The shed endometrial fragments along with the blood are discharged through the vagina, which is menstruation.

　　The onset of menstruation is an important sign that girls have entered puberty. Most girls start menstruating when they are 12-14 years old. The first menstruation is called menarche. The menstrual cycle is generally 28-30 days. Each menstrual period lasts 3-7 days, and the bleeding volume is 30-60 ml. However, some girls have irregular menstruation. Sometimes they come once every 2-3 days, sometimes twice a month, and some don't even come for several months. Some have too much bleeding, and some have too little. What is the reason for irregular menstruation in adolescence?

　　It turns out that girls are in the period of sexual maturity, and the functions of the hypothalamus-pituitary-ovary axis are not yet fully mature. They do not ovulate when menstruation begins, but only produce estrogen, which causes the endometrium to proliferate. However, the level of estrogen is very low, which also causes the endometrium to stop proliferating and cause shedding and bleeding. Therefore, some girls have to wait several months before menstruating again, sometimes with irregular bleeding, sometimes for a short period of time. amenorrhea Later, the bleeding continued, which was the cause of menstrual disorders in girls. After a period of adjustment, the ovaries mature and can ovulate regularly, and then a normal menstrual cycle can be established.

　　In addition, mood swings, excessive exercise, stress at work and study, changes in environment and climate can all affect the menstrual cycle. Every girl has her own menstrual cycle. A few menstruate once every two months or even every six months. This is normal every year and there is no need to worry about it.

　　Girls should pay attention to menstrual hygiene, increase nutrition, and get enough rest when they menstruate. Menorrhagia You should seek medical treatment promptly and do not abuse hemostatic drugs and hormones to avoid adverse consequences.

　　Precautions for women’s menarche

　　Strengthening physical and mental health care and women's health for menarche girls healthy Counseling is very important.

　　First, parents (especially mothers) and teachers should teach menarche girls about the physiological and sexual psychology of puberty, so that they understand that menarche is inevitable for physical development and a sign of entering puberty. There is no need to worry. At the same time, they should be taught that backache, lethargy, fatigue, weakness, etc. that are complicated by menarche are normal phenomena, so as to avoid panic and increase the psychological burden.

　　Second, during menarche, you should avoid participating in strenuous sports, such as long-distance cycling, running, playing basketball, football, etc., to avoid excessive fatigue, which may lead to decreased resistance and induce cold wait disease。

　　Third, you should wash frequently during menstruation and avoid masturbation, because the body's resistance decreases during this period. If you do not pay attention to cleaning and hygiene, it is easy to cause bacterial infection and fever , surveys show that girls who have had menarche Itching of the vulva The incidence rate of the disease is about 6.9%, and its main triggering factors are related to unclean vulva and masturbation during menstruation.

　　Fourth, strengthen self-protection and use high-quality sanitary napkins, let alone ordinary toilet paper and straw paper that are not strictly disinfected.

　　Fifth, pay attention to rest, ensure adequate sleep time, and eat nutritious meals that are easy to digest and absorb. This is of great benefit to strengthening the body and restoring energy.

　　Sixth, avoid contact with cold water, do not wash your hair or take a bath with cold water, keep warm, and definitely do not participate in swimming.

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