Journal of the Korean Medical Association (대한의사협회지)

Korean Medical Association (대한의사협회)
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Hair characteristics and androgenetic alopecia in Koreans

한국인의 두피모발 특성과 남성형탈모증

Choi, Gwang Seong
최광성

  • Published : 20130100
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Abstract

The scalp hair is composed of one hundred thousand of hairs. Each hair goes through the three phases of the hair cycle, which causes the hair to turn from an anagen hair into a catagen hair, then into a telogen hair, and finally into a new anagen hair. The number of hairs is maintained at a relatively constant level because each hair has its own hair cycle. The hair of Koreans is relatively thicker than that of Caucasians and Africans but its growth rate and density are lower. There are various factors that influence hair growth such as hormones, nutritional status, and drugs. However, androgen is most important among these factors and, particularly, androgenetic alopecia is caused by androgen and genetic factors. Because excessive dihydrotestosterone produced by $5{\alpha}$-reductase is of the greatest importance in androgenetic alopecia, finasteride or dutasteride, which inhibits the action of $5{\alpha}$-reductase, is effective in treating androgenetic alopecia. Also, minoxidil is widely used as it promotes hair growth. Furthermore, there are various types of hair diseases and specialized examination is required for differential diagnosis.

Keywords

References

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