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Alopecia

Alopecia is a kind of disease with manifestations of hypertrichosis due to excess spillage of fat in the scalp, oily and wet scalp, mixture of dusts and scurf and hair loss, sometimes accompanied by an itchy scalp and inflammations. In Western Medicine, it is called male pattern baldness, androgenic alopecia and diffuse alopecia, while in Traditional Chinese Medicine it is called “hair tinea”, “hair loss due to decay”, “alopecia areata”, “oily baldness”, etc. It is a kind of common and frequently-occurring disease in the department of dermatology and is difficult to heal permanently. Current opinion holds that alopecia is the androgen-dependent hair loss due to dominant polygenic inheritance of autosome, mostly caused by genetic predisposition and abnormal androgen metabolism of local hair follicles in the scalp.