Gossip numerology: women secretly hide amazing secrets.

Introduction: The incidence of female private parts is often an important indicator to judge diseases. * * * There is a big difference between men and women. Generally speaking, women have less body hair than men. Female * * * generally appears at the beginning of the development of * * *, first appearing in the big * * *, and then developing into the * * * triangle. ...

The number of women's private parts is often an important indicator to judge diseases. * * * There is a big difference between men and women. Generally speaking, women have less body hair than men. Female * * * generally appears at the beginning of the development of * * *, first appears in the big * * *, and then develops into a * * * triangle, and its * * * distribution is an inverted triangle. Axillary hair grows after the appearance of * * * and before menarche.

Normal women have less body hair than men, and there are great individual differences in color, length, thickness and density. Of course, it is also related to factors such as race and age. For example, the body hair of orientals is obviously thinner than that of white people in Europe and America. In addition, the distribution of female * * * is not all typical inverted triangles, but also shield-shaped, rectangular and inverted trapezoidal. * * * is one of the signs of sexual development, which generally coincides with the time when * * * begins to develop. Its growth can be divided into five stages:

The first stage: before 1 1 year old, * * did not grow, only fine hairs were distributed in * * *, which was called infantile type.

The second stage: 1 1- 12 years old, under the action of sex hormone * * * *, * * began to sprout, first in big * * *, then in * * *, with light, thin, soft and straight * * *.

The third stage: 12- 13 years old * * * color deepens and begins to thicken, harden, thicken, lengthen and curl, covering the triangle;

The fourth stage: 13- 14 years old, continues to become dense, similar to the appearance of adult women, and its upper boundary is mostly limited to * * *, and it has not yet expanded to the inner thigh and no longer expands upward.

The fifth stage: 14- 15 years old, * * spread intensively and widely, covering the whole vulva, covering the big * * * under the pubic bone, reaching the inner thigh at * * *, showing a typical adult female * * *. The appearance of axillary hair is late, which is usually the last appearance in the process of female secondary sexual characteristics. The vast majority will not grow up until 17 years old.

Hair growth is mainly controlled and restricted by androgen and estrogen. Androgen and estrogen have specific * * * or inhibitory effects on hair growth in different parts of the body, so the distribution of hair between men and women is different, while other primates rarely have such gender differences, and the mystery is still difficult to explain. For example, estrogen promotes the growth of hair, while androgen inhibits the growth of hair on both sides of the forehead, so men's hair is not as thick as women's, showing a specific concave hairline.

Another example is the growth of androgen beard and chest hair, while estrogen inhibits their growth, so men have beard and chest hair (rare for yellow people), while women have neither. Estrogen and androgen have * * * effects on armpit hair and * * *, so both men and women have armpit hair and * * * growth (although the distribution characteristics of * * * are different between men and women).

The growth of body hair in men and women is mainly controlled by androgen (dehydroepiandrosterone) secreted by adrenal cortex. When female adrenal cortex function is low, hair will fall off, and hair can be revived after androgen injection. When a man's testicles are removed, his beard stops growing, but his armpit hair and * * * remain unchanged.

* * * Too little or too much is mainly manifested in women. Normal women have less body hair, most of which is physiological, and there is no important pathological change in their bodies, which has no impact on their health. * * * Too little is the morbid state of a few women. There is a genetic disease called Nessler's syndrome, which is caused by abnormal sex chromosomes and is often rare. This female patient has gonadal insufficiency, short stature and * * * dysplasia. The vulva and genitals are childish, with almost no * * *, accompanied by amenorrhea and no fertility. Some women have low thyroid function, often no armpit hair, and little * * *, and there is a phenomenon of * * * depression. Some women will also have postpartum hemorrhage, pituitary ischemia, pituitary insufficiency, amenorrhea infertility, emaciation, weakness, * * decline, hair loss, * * * less hair and other symptoms.

Some women suffer from hirsutism, which is usually a symbol of disease. In women with eosinophilic or basophilic pituitary adenoma, hirsutism often occurs. The former has sausage-like fingers, thickened teeth, enlarged tongue and disordered gonad function; The latter has a full moon face, a bulging belly and rough skin with amenorrhea and high blood pressure. In women with adrenal hyperplasia and tumor, androgen secretion is excessive, leading to * * * excess and * * * hypertrophy. Polycystic ovarian syndrome can also appear hirsutism, which is characterized by less initial times, and obvious increase in body hair after amenorrhea or irregular menstruation, obesity and infertility. In addition, there are hereditary hirsutism, drug-induced hirsutism and neuroticism, which should be checked and diagnosed in time.