title: Discolouration of the fingernails from using hydroquinone skin-lightening cream.
abstract: A 23-year-old left-handed white male was referred with a complaint of brown discolouration of the fingernails of his left hand. He had been applying 4% hydroquinone cream to facial melasma. The discolouration began in winter and worsened in March and April. It resolved within 2 months of cessation of hydroquinone. There are only a few reports of nail staining as a result of hydroquinone in the literature. Nail discolouration as a result of hydroquinone may occur on only one hand.
authors.affiliation: Izzet Baysal Medical Faculty, University of Abant Izzet Baysal, Bolu, Turkey. alihaydarparlak@yahoo.com
authors.forename: A Haydar
authors.initials: AH
authors.lastname: Parlak
authors.forename: I
authors.initials: I
authors.lastname: Aydoğan
authors.forename: A
authors.initials: A
authors.lastname: Kavak