Abstract: Hereditary hypotrichosis is a single gene genetic disease and the manifestation is partial or total hair loss permanently. According to the hereditary model, hereditary hypotrichosis includes the autosomal dominant, autosomal recessive, X-linked dominant and X-linked recessive hereditary hypotrichosis. This article focuses on the update of autosomal dominant hereditary hair less, including various subtypes, hypotrichosis simplex of scalp, hereditary hypotrichosis simplex, marie Unna hereditary hypotrichosis, autosomal dominant woolly hair and loose anagen hair syndrome.

Key words: hypotrichosis')">

hypotrichosis, mutation, molecular genetics