Alopecia refers to the phenomenon of hair falling out.
Hair loss is not all a disease. Since hair growth is inherently cyclical, as the growth cycle ends, the hair falls out on its own and is replaced by new hair. And because the growth cycle of each hair is different, even adjacent hairs will not be in the same growth cycle, so under normal circumstances, people will lose hair every day, such as dozens of hairs every day. However, normal hair loss occurs sporadically, and new hair growth occurs soon, and the loss and growth are in a dynamic balance, so it will not cause hair loss or baldness.
People don't have to worry about hair loss when brushing and washing their hair every day. In a person's life, hair growth is fastest at the age of 15 and 30, and the growth rate gradually slows down with age, and the number of hair follicles gradually decreases with the aging and atrophy of **, and the hair will gradually become scarce;Some women lose more hair after childbirth, which is caused by endocrine and nutritional reasons, and most of them can recover after a period of self-regulation. These are normal physiological phenomena.
If a person is in the prime of life and hair loss has increased significantly, the loss of hair and the regrowth of hair can not maintain a dynamic balance, and the hair is becoming thinner, this may be pathological alopecia.
Hair loss can be divided into two basic types: permanent hair loss due to damage to hair follicles, and temporary hair loss due to short-term damage to hair follicles.
Temporary hair lossIt is often caused by an illness with a high fever. However, temporary hair loss can also be caused by exposure to x-rays, ingestion of metals (such as thallium, tin, and arsenic) or drugs, malnutrition, certain inflammatory diseases, chronic wasting diseases, and endocrine disorders. Hair loss can generally be improved after removal.
Permanent hair lossThis is common male baldness. In some European countries, the rate of baldness in men is as high as 40. The process of hair loss in permanent alopecia (i.e., male pattern baldness) is gradual. At first, the edges of the hair on the forehead of the head are noticeably retracted, and the hair on the top of the head is sparse;It then progresses to the point where only the back of the head remains, with a ring of thinning hair on either side of the head.
Permanent hair loss can occur for the following reasons:
"Testosterone" is an important component of male hormones, and testosterone is converted into "dihydrotestosterone" under the action of a enzyme called "5 reductase". Dihydrotestosterone is the culprit of hair loss, which can make the hair follicles on the scalp smaller and smaller, and the hair will grow smaller and smaller, so that eventually it will not grow at all. Of course, hair loss does not exclude genetic factors, male pattern hair loss is often the result of the combined effect of genetic factors and male hormones, and fatigue, anxiety, etc. can aggravate the original hair loss.
Learn to be beautiful and amaze everyone with a lot of pressure. If you're feeling "stressed" all day long, it's easier to get to your door with hair loss. Long-term intense stress can interfere with the body's hormonal balance, which will eventually manifest itself in the hair that is constantly falling. Hair loss on one of the mother's relatives. The man would always stare at his father's hair, fearing that he would go bald one day. In fact, for hair loss caused by excessive androgens, the genetics are likely to come from your mother. Keep an eye on the hair of a relative on your mother's side, this is likely to be your trend later on. Poor blood circulation. In addition to blood, every hair fixed in the hair follicle needs to be nourished by blood flow, and if there is a problem with blood circulation or malnutrition, it will affect the hair.
Finally, in daily life, female hair loss is often temporary hair loss, which can be recovered through self-conditioning, while most of men's hair loss is permanent, even if it takes a lot of effort, the problem of hair loss is still difficult to improve.
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