title: Clinical observations on the development and eventual character of hair in the axillae of human beings.
abstract: The authors examined clinically growth and patterns of axillary hair of Japanese males and females of various ages with a specific interest in the differences between vellus and coarse hairs. One notable finding was that in the axillae of children, vellus hairs are equidistant and solitary, whereas the coarse hairs that replace them emerge during puberty as solitary hairs and in bundles or groups. A statistical summary and speculation as to why growth of vellus hair and growth of coarse hair differ are the substance of this report.
mesh_terms: D000293:Adolescent; D000328:Adult; D001365:Axilla; D002648:Child; D005260:Female; D006197:Hair / Q000196:embryology / Q000254:growth & development*; D006801:Humans; D006945:Hyperhidrosis / Q000628:therapy*; D007231:Infant, Newborn; D008297:Male