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Hair Loss in Men – Androgenetic alopecia

Hair loss is a widespread issue, and one-third of all men between the ages of 20–60 suffer from it.

Androgenetic alopecia – Norwood scale
Androgenetic alopecia – Norwood scale

It is caused by the action of the male hormone testosterone on the hair follicles, which, in certain men, are genetically predisposed to damage. These follicles are located in the frontal and central areas of the head.

A follicle is the body’s structure that allows hair growth and is located under the skin.

On average, there are around 100,000 hair follicles on the human head. About 20–30 hairs can grow from each follicle throughout its lifetime, but only 70% of hairs are in the growth stage at any given time; 10% of hairs are always in the resting phase. Over the years, the hair follicles' density reduces as hair growth slows.

Under the influence of male hormones – androgens (from which the name of androgenic alopecia originated) – follicles that are genetically predisposed to androgenic hair loss gradually decrease in size over time, and eventually die. Although these hormones are present in all men, only predisposed persons are likely to suffer hair loss.

However, there are always hairs remaining at the back of the head. The follicles in this region are resistant to hair loss factors.

Thus, the only solution to the problem of androgenic hair loss is to redistribute genetically healthy hairs from the back of the head to the bald areas through a hair transplant procedure.




Hi! Talizi,I've just read this scientific article, and some questions arose. I wander if there is any method of reducing the adverse influences of androgens on hair grafts? Maybe through the hormone replacement therapy? Or hair transplant is the terminal decision?

Administrator: Yes. There are medicines, which help to slow down hair loss process. Read our article about Pharmaceutical Treatment.


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