12 years old pubic hair

Girls start to grow armpit hair after the age of 12, which is a normal physiological phenomenon. As living conditions continue to improve, people's diets are becoming more abundant, and children's growth and development are faster. It is normal to grow pubic hair a few years earlier or later. There is no need to worry. Pubic hair is an important secondary sexual characteristic. Parents should provide their children with sex education in a timely manner, which can alleviate their anxiety. So what is the process of female pubic hair growth?

1. Chinese girls generally start to grow pubic hair at the age of 14, and by the age of 17 or 18, the density of the pubic hair is basically determined. The presence and density of pubic hair mainly depends on two factors: one is the level of estrogen androgen produced by the adrenal cortex in the body; the other is the sensitivity of the pubic hair follicles to estrogen androgen. If for some reason the level of estrogen and androgen produced by the adrenal cortex is low during the development period of female pubic hair, or the pubic hair follicles are insensitive to estrogen and androgen, the pubic hair will be sparse or even absent.

2. The role of pubic hair

It is generally believed that the function of pubic hair is to reduce the damage caused by friction to the pubic area during sexual intercourse between two sexes. In the process of natural selection, pubic hair may also indicate that the organism has reached physiological maturity and is physically ready for mating. Pubic hair and other body hair can also make sexual intercourse smoother and more comfortable. Pubic hair also has the function of protecting against the sun, because the surface of the genitals is very delicate skin. Without the shielding of the sun by pubic hair, the human genitals are easily damaged by the sun.

Pubic hair can also add interest during sexual intercourse.

3. Others

In reality, the density of pubic hair varies greatly from person to person. For women with sparse or no pubic hair, if their other secondary sexual characteristics are normal (such as breast development, body shape, voice changes, etc.) and their menstruation comes on time, it means that there will be no problems with the development of their sexual organs and sexual function, and they can have a normal sex life and normal reproductive ability.

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