Time：2023-03-27 23:44:02 source：psychiatricethics.com author：Prevent anxiety Read：890次

The root cause of increased dandruff, the doctor teaches you how to choose the correct shampoo

Have you ever had the experience of wearing a dark-colored clothes for a while, dandruff all over your shoulders, embarrassed, and never dared to wear dark-colored clothes again? I just washed my hair yesterday, but when I scratched my scalp, "snowflakes" floated all over the sky. Why can't I get rid of this annoying dandruff? So let's take a look, how does dandruff occur? The mechanism of dandruff is complex, it is the result of a combination of factors, it is mainly divided into two categories: 1. Physiological dandruff The superficial skin of the human body is mainly composed of keratinocytes, and keratinocytes are formed every day. Metabolism is fully renewed in about 28 days. The cells at the bottom grow upward, and the cells on the surface dry up and die, turning into keratin, which is then sloughed off with the wind. And these exfoliated keratin is what we often call dandruff, which is a normal phenomenon. In fact, our epidermis also sheds dander every day, but it is not conspicuous. Once the shedding part appears on the top of the head, it becomes the stars in the night sky, which is very conspicuous. In addition, it is blocked by the hair, and it is not very smooth when it falls off. If you don't wash your hair for a few days, almost everyone will have more or less dandruff. The response to physiological dandruff is to wash your hair. Those with dry skin should choose a shampoo suitable for dry skin, preferably a moisturizing product. People with oily skin have more sebum secretion, so they should wash their hair more diligently than those with dry skin. 2. The problem of pathological dandruff is troublesome, and it is related to some diseases, such as seborrheic dermatitis, atopic dermatitis, psoriasis, dandruff and so on. At this time, it is necessary to find a dermatologist to help you judge. The most common cause is seborrheic dermatitis, its main symptoms are dandruff, it is also accompanied by scalp itching, skin inflammation and so on. Its pathogenesis is not completely clear, and it is relatively clear that it is related to three factors: sebum secretion, Malassezia and individual susceptibility. They affect the metabolism of scalp cells, causing massive dandruff. Pathological dandruff mainly starts from the inhibition of Malassezia, because sebum secretion and personal susceptibility are more difficult to change. We can see that there are many anti-dandruff shampoos on the market, which basically contain ingredients that inhibit Malassezia, such as zinc pyrithione (ZPT), piroctone acetamide (OTCO), clomibazole And so on, they can achieve a good anti-dandruff effect. However, since Malassezia is a resident bacteria on our skin, it is impossible to remove all of them. The above medicines can only cure the symptoms but not the root cause, and relieve your dandruff symptoms. If the effect of inhibiting Malassezia alone is not good, under the guidance of a doctor, use drugs that interfere with the metabolism of scalp cells, such as salicylic acid, coal tar, etc., which can peel off dandruff in advance or make dandruff grow. slower. If necessary, drugs to improve seborrheic dermatitis can also be used. In fact, in addition to the above-mentioned reasons, there are other influencing factors that can also cause the increase of dandruff, such as climate change, excessive shampooing, and the use of inferior shampoo. If the body lacks vitamin B, it is easy to cause seborrheic dermatitis. If you want to have more outstanding hair and stay away from the troubles of dandruff, it is not so difficult. The key is to treat the symptoms.

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