Do you know the secrets of hymen and sex?

　　female Hymen, do you know?

　　The hymen prevents external unclean things from entering the vagina and protects the vagina. Before puberty, because the ovaries secrete very little estrogen, the vaginal mucosa is thin, has few wrinkles, and is low in acidity, so the resistance is poor. The hymen has a protective effect in blocking bacterial invasion of the vagina; after puberty, as the ovaries develop, estrogen in the body increases, and the vaginal resistance is strengthened, so the hymen gradually loses its role.

　　The hymen is a hollow membrane covering the external opening of the female vagina, about 1 to 2 mm thick. Both sides of the membrane are moist mucous membranes. The two layers of mucous membranes contain connective tissue, capillaries and nerve At the end, the small hole in the middle is called the hymen hole.

　　The size of the hymen pores and the thickness of the membrane may vary from person to person. The diameter of the hymen hole is about 1 to 1.5 cm, usually round, oval or zigzag; some are half-moon-shaped, with the hole on one side; some are partition-shaped holes, with two small holes arranged up and down or left and right; some have many scattered small holes, just like the small holes on a sieve.

　　The hymen hole is necessary for physiology. After a woman matures, monthly menstrual blood is discharged from the body through this small hole. If there is no small hole in the membrane, the monthly menstrual blood will be blocked by it and cannot be discharged from the body. Medically, it is called hymenal atresia. If not discovered in time, menstrual blood accumulates in the vagina and can expand upward over time. Uterus The lumen and fallopian tube flow into the abdominal cavity through the distal opening of the fallopian tube, causing damage to the fallopian tube, intestinal adhesion, and abdominal infection.