Hair Loss

Hair loss begins around 18 years and is already apparent between 25 and 30. In this hair loss, hairs are replaced by hairs growing thinner and shorter. They may even become transparent. Is inherited from both father and mother. In such cases there is an abundance of dihydrotestosterone (DHT), a male hormone, into the hair follicle. The conversion of testosterone to DHT is regulated by an enzyme called 5-alpha reductase in the scalp.

Over time, the action of DHT enables the follicle to degrade and shorten their growth phase (anagen). Although the follicle is technically alive grow ever smaller. Some follicles simply die, but most are smaller, more hairy. As the anagen phase is still very short, more hair fall and hair gradually thins until it becomes so thin that you can not stand the hair daily. Baldness long hair becomes thick and thin pigmented hair, clearer and fluffy. However, the sebaceous gland attached to the follicle continues to have the same size and continues to produce the same amount of sebum. When a medical treatment (finasteride, spironolactone) will reduce the male hormones, the sebaceous glands become thinner and produces less fat. In these cases, the amount of hormone in the fat is also less, so that there will be much damage.

There seems to be also an immune factor in baldness. Basically, the immune system begins to take target hair follicles in the areas of alopecia. The rise in male hormones (DHT) during puberty begins this process. Secondary Causes A variety of factors can cause hair loss, often transient, in males.

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