According to the statistics of skin beauty experts, Asians generally like fair skin, and there is an old saying in China that "one white covers all the ugliness". But as time goes on, we will gradually find that the skin in some places is getting darker and uglier? Still dirty? What the hell is going on here? See what the experts say. First, the labia Modern women are demanding more and more beauty, paying attention not only to the exterior, but also to the invisible interior. The mysterious "butterfly zone" has become another topic. (1) Where is the labia? In the traditional impression, the labia in the mysterious zone is a mysterious delta that you are embarrassed to spy on. Generally speaking, the private parts refer to the labia minora. The labia minora is located inside the labia majora and extends from the clitoris to the frenum. It is composed of connective tissue rich in blood vessels, so it looks pink in appearance and is covered with multiple layers of epithelial tissue. The anterior part of labia minora consists of two parts: the medial part and the lateral part. The outer parts of both sides form the foreskin of the clitoris, while the outer parts form the frenulum of the clitoris. The labia majora is two curved folds formed by fat. In fact, there are many pubic hair, sweat glands and sebaceous glands on the outside of the skin, while the inside is smooth and hairless, which can surround and protect other external genitalia. The structure of genitals is very complex and sensitive, and some incorrect maintenance concepts will also make private parts suffer greatly. Take the labia as an example, it is an environment with a pH of around 4. There are many lactobacilli in the vagina to maintain the health of the vaginal environment. In general, the number of other fungi is very small, but if there is external interference (especially using detergent) or washing the vagina by itself, it may cause bacterial reproduction and infection. (2) What is the function of labia? The labia minora can be said to be the gatekeeper of private parts. When the legs are together, the two labia minora will naturally close and completely cover the urethra and vaginal orifice, which can not only protect these two parts from friction damage, but also prevent external infection and keep the vulva moist. With the opening of ideas, female friends not only pay attention to comfort and health, but also have "beautiful" requirements for private parts. Gynecologists will tell female friends not to be ashamed to observe their private parts, because from the change of appearance, you can know whether you are infected or not first. If you find that the vulva is red, swollen, hot, painful, and has excessive secretions, or has unpleasant symptoms such as discoloration and itching, you should see a doctor as soon as possible. Specialists say that the problem of labia is often too long. If the labia minora is too long, it will not be conducive to the discharge of vaginal secretions, and it is not easy to clean. After urinating, urine is easy to remain near the genitals, which will not only increase secretion, but also cause odor problems. In the outpatient department, many older female friends can't treat gynecologists well because of repeated infections, and only after surgery can they solve the problem. In recent years, more patients have come to see a doctor because they are worried that it is too dark there. (3) Why does the labia darken? There are many interesting speculations about the blackening of labia, such as: a woman's labia blackens because of walking friction; Or because some emulsions are not good, it seems that many emulsions are corrosive ... These statements are funny, but unscientific. In fact, the blackening of female labia usually does not rule out the following reasons: 1, genetic reasons. 2. Sexual life is too frequent. 3. Normal pigmentation. That is to say, the same sex leads to the blackening of the labia, including the vaginal opening and the inner and outer labia. During sexual life, the labia is repeatedly stimulated by external friction for a long time, which increases local pigmentation and its color will deepen with time. This is a normal physiological phenomenon, and the melanin of sexual stimulation hormone will also make the labia darken and dizzy. Second, nipples (1) Everyone loves pink nipples? Consumers are crazy about pink breasts. Teacher Niu Er, a cosmetics expert, believes that this is because of the agitation. Many people have a misunderstanding that pink areola is a symbol of girls and a standard of beauty. Although everyone thinks pink is cute, it means that it is not mature enough, and mature women are dizzy. So nipple blackening means you are a mature woman! Only when sexual maturity, nipples will turn black and faint. This is because breast nutrition depends entirely on sex hormones. If women have had sexual experience, nipples will change like this. Because sexual behavior will promote the activity of attractive pituitary gland, and then many sexual stimulating hormones will be secreted by the anterior pituitary gland. In fact, not only the anterior pituitary, but also the middle pituitary will secrete melanin, which will make the nipple black. At this time, the originally small breasts will develop rapidly and become plump and beautiful. (2) Why nipples turn black is influenced by many factors. In a woman's life, the color and size of areola may change greatly. There are many reasons for black chest, mainly the following. 1. The change of pregnancy hormone causes areola to enlarge and turn black at the same time. Even if the postpartum hormones gradually return to normal, the areola size can not be restored to the pre-pregnancy appearance. 2. Wearing a bikini with no sunscreen effect in the sun makes the fabric more transparent after entering the water, giving the sun a chance to invade the chest. Or like to wear thin and cute clothes, without underwear and sun protection, it will lead to the black areola. 3. Excessive stimulation of excessive sexual life, baby sucking breast milk, and like to wipe the body with a sponge brush, improper exfoliation, etc. , will cause melanin precipitation. 4. Wear rough underwear, the material of underwear is rough, and constantly rubbing the areola will also cause melanin precipitation. Third, girls who are more careful about the inner skin of the thigh root may find that since having sex, the inner skin of the thigh root of women has become darker and darker, looks ugly and ugly, and even makes them feel ashamed and resentful. What should I do? In fact, we don't need to feel sad or indecent at all, because your inner thigh, which we often say, is affected by hormones like sex organs, so it is easier to turn black. In fact, this is a very normal phenomenon, but also a personal physique, so don't worry too much. In addition, it is also possible that your underwear is too tight on weekdays, which oppresses the blood circulation. In the case of poor blood circulation, melanin is easy to sink and your skin color is easy to darken. At this time, it is recommended to wear loose underwear to relieve the skin on the inner thigh. Private parts are affected by hormones, so they are more likely to turn black. In fact, this is a normal phenomenon and a personal physiological relationship, so don't worry too much. Nine ways to help women keep their private parts sensitive. Female depression or lead to endocrine disorders, acne in private parts.