Margit Kohler

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The most important types
of hair loss

Androgenetic alopecia

Among two-thirds of men, the tendency towards hair loss is genetically inherited from the parents. There is a constitutional sensitivity of hair roots to male sex hormones. The metabolic product dihydrotestosterone (DHT) is formed from the male sex hormone “testosterone” and the 5-alpha reductase enzyme. It is deposited on the receptors of the hair root and forms important proteins for the growth of hair. If testosterone is increasingly transformed, the effect of DHT intensifies, which causes a degeneration of hairs – i.e. the affected root produces only fine, almost invisible, short, fluffy hair or the hair falls out.

Scarring or atrophic hair loss

This usually occurs due to burns, chemical burns or skin diseases. The hair roots are damaged or destroyed beyond repair. Only hair transplantation enables renewed growth of hair in these areas.

Alopecia areata

Circular – at the outset coin-sized – bald spots reach their final size of three to four centimetres in diameter after two to three months. The probable cause for this is an autoimmune disease. Circular hair loss (alopecia areata) can also appear in the beard region, but usually heals within months.

Diffuse hair loss

Diffuse hair loss is not heralded by, for instance, a receding hairline emerging on the temples. The hairs on the top of the head thin out and lose volume in certain areas, which is why diffuse hair loss is sometimes only noticed later. The causes can be diverse and range from metabolic disorders, deficiency symptoms, severe illnesses and inflammations to medications, radiotherapy or psychological stress. Hair loss can frequently be stopped as soon as the cause is recognisable and subsequently eliminated.

Today we are sure of one thing: irrespective of our dietary habits, our lifestyle or the vitamins which we take, the number of our hair roots for our entire life is already predetermined at birth. Stress, medicinal products, diets or iron deficiency frequently contribute towards hair loss.

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Hair Loss

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