title: Hairdresser's koilonychia.
abstract: Koilonychia is a nail disorder well known to accompany certain systemic diseases, but it can also be caused by external factors. We report two cases of occupational koilonychia in hairdressers caused by the toxic effect of chemicals used in permanent wave. Hairdresser's koilonychia has been seldom reported, but may be common.
authors.affiliation: Section of Dermatology, Finnish Institute of Occupational Health, Helsinki, Finland.
authors.forename: K
authors.initials: K
authors.lastname: Alanko
authors.forename: L
authors.initials: L
authors.lastname: Kanerva
authors.forename: T
authors.initials: T
authors.lastname: Estlander
authors.forename: R
authors.initials: R
authors.lastname: Jolanki
authors.forename: T
authors.initials: T
authors.lastname: Leino
authors.forename: R
authors.initials: R
authors.lastname: Suhonen
mesh_terms: D001505:Beauty Culture; D005260:Female; D005500:Follow-Up Studies; D006203:Hair Preparations / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D009264:Nails, Malformed / Q000139:chemically induced*; D009784:Occupational Diseases / Q000139:chemically induced*
chemical_list: D006203:Hair Preparations