The first thing many people think of when they encounter the trouble of having a lot of hair, darkness and density is hair removal. However, many people do not realize that before hair removal, they need to let the doctor do professional identification, including hair type identification and hair distribution status identification. Some people may think, “It’s just hair removal, what’s the point of identification? It turns out that there are various reasons for the phenomenon of hairiness, and if you do not identify it clearly before rashly removing hair, it is likely to cover up the real condition, thus leading to unsatisfactory hair removal results. Look at the following case, perhaps you will have a more comprehensive and scientific understanding? Hereditary hirsutism Ms. Lili: I never like to wear clothes that show my arms and legs, especially in this summer. Because the hairs on my small arms and legs are really painful for her. I don’t understand why other ladies have very little hair on their bodies, while their whole body hair looks so obvious? Dr. Huang: Lili’s hairy body is not her personal situation, her parents are also hairy. Her condition is hereditary hypertrichosis, which can be removed with laser. Lili’s condition belongs to the first typical cause of hirsutism – hereditary hirsutism: excessive hair growth on any part of the body is mostly genetic or racial. Among female patients with hereditary hirsutism, their body hair is thicker, finer and longer than normal, but its distribution is still female type and their body androgen levels are normal. For example, the hair on their upper lip will be finer and denser, but will not become coarse. Ms. Wang: just 20 years old, but the body always does not give, the period either early or late, or late to come; long past puberty, but the face acne refused to leave; more trouble is that her skin is not as delicate and smooth as other girls, and the hair in many parts of her body is black and more, so she is suffering…. … Dr. Huang: Ms. Wang’s symptoms of hairiness, frequent acne and irregular menstruation are closely related. Behind these symptoms, probably high androgen level is one of the important reasons. Should first go to the gynecological examination, the purpose is to find out whether the levels of sex hormones are normal, if there are abnormalities, you need to first in gynecology or Chinese medicine treatment and conditioning, and then to the laser department to do hair removal treatment. Miss Wang’s case belongs to the second typical cause of hirsutism – female hirsutism: abnormal hair distribution type, some parts of the body only respond to high levels of androgens, including the chest, abdomen, back, thighs, upper arms and lids, if women in these parts of the presence of coarse hair is pathological, that is, women’s coarse hair distribution presents male type, which can be primary or secondary to endocrine disorders, drugs or masculinizing tumors, is called female hirsutism, the most common cause being polycystic ovary syndrome. Acquired hirsutism Ms. Zhang: likes dresses. Skin is often exposed and has been using hair removal cream at home to deal with armpit and leg hair. However, because allergic skin symptoms often occurred after epilatory cream use, she switched to the more convenient shaver. At first, for a year or two, she could shave once every month or two, but after that, she slowly found that the growth rate of the armpit and leg hair was getting faster, and it was getting thicker and heavier in color. Seeing this situation, she was terrified and wondered if there was something wrong. Dr. Huang: Ms. Zhang only had abnormal hair types and distribution on her armpits and legs, but not on other parts, so she quickly booked a laser hair removal treatment for her. Ms. Zhang’s case belongs to the third typical cause of hirsutism – acquired hirsutism: only in individual areas, such as calves, forearms and other locations with abnormal hair type and distribution, with long-term shaving or use of hair removal cream, etc., can be judged as the transformation of hair after long-term stimulation. Traditional hair removal method PK laser, photon hair removal traditional hair removal methods are: shaving, plucking, hair removal cream hair removal, wax paper hair removal, etc., these methods not only can not essentially solve the trouble of excessive hair growth, but will add new mess. Most people who use this method for a long time will find that the hair gradually becomes thicker and harder, and darker. Hairs that were not visible become more visible, and hairs that previously needed to be treated only once every few weeks become necessary to be treated once every few days. At present, the most common hair removal methods used in the laser department are laser hair removal and photon hair removal, and there is no significant difference in the results. The principle of laser and photon hair removal action is that the melanin in the hair is the color base (i.e., the target or target of the strike) of hair removal, and its content is much more than that of the skin, and this characteristic determines that the hair should absorb more laser or photon energy than the skin. When the laser or photon irradiates the skin tissue, the melanin-rich target tissue in the hair follicle absorbs the energy and converts it into a thermal effect that destroys the hair’s hair-growing cells, resulting in irreversible damage to the hair follicle, while the tissue surrounding the hair follicle contains only a small amount of melanin and produces only minor reversible damage – i.e. selective photothermolysis. Which parts of the body can be hair removal armpit hair, forearms, calves are the most common parts of hair removal, followed by the upper lip, thighs, upper arms are also more common treatment areas, other parts such as hair removal in the front and back of the hairline can adjust the height of the hairline, and thus change the height and width of the forehead, is also very popular. In recent years, there has been an increase in the number of people requesting hair reduction or removal from intimate areas due to the influence of many foreign concepts or the need for bikini swimsuits. For men, the beard and chest hair are the areas that are often requested for treatment. After hair removal, the number of hairs will be significantly reduced and the remaining hairs will be fine and soft, light in color and completely aesthetically pleasing. Laser or photon hair removal to remove several times generally to remove 3 to 5 times, each interval of about 2 months, this is because the hair growth is cyclical, only the growth period of the hair melanin content is high, hair removal effect is good, the transition period and the resting period of the hair follicle melanin content is low, hair removal effect is poor. Therefore, each treatment only works on the hair in the anagen phase and it takes at least 3 sessions to treat all the hairs. The number of treatments depends on the location, the color and thickness of the hair, and the type of skin. Usually, the lighter the skin tone, the darker and thicker the hair is, the better the response and the better the hair removal effect. Laser and photon hair removal has no side effects laser and photon hair removal technology is a kind of medical beauty, the success of the treatment depends on whether the equipment used is qualified, whether the operation is standardized, whether the treatment energy is reasonable. Laser treatment equipment is one of the factors that directly affect the effect of hair removal, good laser equipment energy stability, good reliability, not only good treatment effect, and the stimulation of the skin is small, side reactions and complications are less. Although the operation of hair removal looks simple, unreasonable parameter setting may affect the treatment effect (too low energy), or there may be complications (too high energy), such as skin burns or blisters, skin crusting, leaving pigmentation or depigmentation, or even scarring in serious cases. In addition, the technique used during the operation will also affect the effect and safety of the treatment. Therefore, the safety and effectiveness of the treatment can be maximized by choosing a regular medical institution with a properly trained physician. Experienced physicians will choose the right equipment and set the right treatment parameters according to the type of skin and hair type to ensure safe and effective treatment. The safety of the properly operated hair removal treatment is very high. The immediate reaction after the treatment can be redness or erythema of the skin, edema around the hair follicle, which usually disappears in a few hours or 1~2 days, and the skin returns to normal, and you can take a normal bath after the treatment. Will laser hair removal affect sweating hair follicles and sweat glands are two separate structures, hair grows from the hair follicle, while sweat glands are adjacent to the hair follicle, the two are not a structure. Laser and photon hair removal destroy the growth cells in the hair follicle, so that the hair no longer grows, it does not destroy the sweat gland, so it has no effect on sweating. In life, people often say that sweating from the sweat pores, in fact, this is just a customary statement, not scientific.