Hi, They are some Important Hair Disorders and signs: • Male-pattern baldness commonly occurs from the second decade. Hair is lost first from the temporal regions, frontal area, and the crown . • Alopecia areata is associated with autoimmune disorders and occurs in the second or third decade. Sharply defi ned, noninflammatory bald patches appear on the scalp. There may be exclamation-mark hairs thinner at the base. This also affects the eyebrows and beard. Nails may be slow growing and show pitting. • Alopecia totali s is a loss of hair from all areas of the scalp. • Alopecia universalis is a loss of all body hair. • Telogen effluvium : Normally, hairs grow and shed at different times and different rates. A severe illness, high fever, pregnancy, and, more commonly, child-birth may synchronize all the hair follicles, causing them to shed at the same time, about 3 months later. This gives a brief total hair loss that grows back. • Scarring alopecia :...
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