How long is a girl's menstrual period?

Generally speaking, the physiological period refers to the menstrual period that mature women have every month. Generally, it takes about 3 to 7 days for girls. During this period, a certain amount of blood will be discharged from the girl's uterus through the vagina. This blood is very clean. During this period, you should be careful not to get too tired, not to eat raw or cold food, keep a good mood, and pay attention to staying clean.

1. Menstrual period

Menstruation, also known as the menstrual cycle, is a physiological cycle that occurs in some fertile female humans. In women of childbearing age and female primates, every month or so, the endometrium undergoes a periodic change of autonomous thickening, blood vessel proliferation, glandular growth and secretion, and endometrial collapse and shedding accompanied by bleeding. This periodic vaginal discharge or uterine bleeding is called menstruation.

2. Female menstruation

In order to explain this issue, we must first understand the structure and physiological functions of female reproductive organs. 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. 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 1 mm to 6 mm, 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 contract, the endometrium necrotizes and falls off, causing bleeding and forming menstruation. Therefore, the length of the menstrual cycle depends on the length of the ovarian cycle, which is generally 28-30 days, but varies from person to person, and may be 23-45 days, or even 3 months or half a year as a cycle. As long as it is regular, it is generally considered normal menstruation. The bleeding time is generally 2-7 days, and the total amount of bleeding for each menstruation is 30-50ml. Some people believe that a menstrual volume of more than 80ml is a pathological condition.

3. Menstruation

The first day of each bleeding is called the beginning of the menstrual cycle, and the time interval between the first days of two menstrual periods is called a menstrual cycle. The normal menstrual cycle is 28 to 30 days, and 7 days early or late is considered normal. Under normal circumstances, each menstrual bleeding lasts 2 to 7 days, and the amount of blood loss each time is about 50 to 100 ml. However, the amount of blood loss during menstruation is not easy to calculate. It can only be roughly estimated by how many times the menstrual pad is changed each day. The highest amount of blood loss is on the 2nd to 3rd day.

During the menstrual period, due to congestion of the pelvic organs, women may feel a heaviness in the lower abdomen and lumbar region. Some may also experience bladder irritation symptoms such as frequent urination and urgency, as well as gastrointestinal dysfunction such as nausea and diarrhea. However, in general, these discomforts do not affect women's work and study.

4Ovulation

A woman's ovulation date is generally about 14 days before the next menstrual period. Starting from the first day of the next menstrual period, counting down 14 days or subtracting 14 days is the ovulation day. The ovulation day and the 5 days before and 4 days after the ovulation day are called the ovulation period. For example, a woman's menstrual cycle is 28 days, and the first day of this menstruation is December 2nd. Then the next menstruation will be on December 30th (December 2nd plus 28 days). Subtract 14 days from December 30th, and December 16th is the ovulation day. The ovulation day and the 5 days before and 4 days after it, that is, December 11-20, is the ovulation period. Except for the menstrual period and ovulation period, the rest of the time is the safe period. There is no need to use any contraceptive drugs or tools during sexual intercourse during the safe period. The safe period calendar varies greatly from person to person due to individual physical differences, so it is for reference only.

In fact, during girls' menstrual period, girls must pay special attention to the matters mentioned above by the editor, because this is for your own health. Therefore, girls must be careful not to ignore the menstrual period for their own convenience. If you cause your body to develop symptoms due to a moment of inattention, it will definitely not be worth the loss.