Beaded hairCheveux incoiffablesFamilial poliosisFamilial premature canitiesFamilial premature greying of the hairGenetic abnormalities of hair colourGenetic defects of the hair shaftGenetic defects of the hair shaft with increased fragilityGenetic defects of the hair shaft without increased fragilityLoose anagen hair syndromeLoose anagen syndromeMonilethrixPili annulatiPili tortiPili trianguli et canaliculiPseudomonilethrixRinged hairSpun-glass hairTwisted hairUncombable hair syndromeWoolly hair