Onychomadesis is a periodic idiopathic shedding of the nails beginning at the proximal end, possibly caused by the temporary arrest of the function of the nail matrix.:784:660 One cause in children is hand foot and mouth disease. This generally resolves without complication.
Onychomadesis can also occur if the nail is damaged or suffers a loss of blood supply, i.e. due to a bruise. The nailbed turns black, and the nail drops off shortly afterwards. It takes around 6 to 12 months to regrow.
- James WD, Berger TG, Elston DM (2006). Andrew's diseases of the skin : clinical dermatology (10th ed.). Philadelphia: Saunders Elsevier. ISBN 978-0-8089-2351-0.
- Freedberg IM, Fitzpatrick TB (2003). Fitzpatrick's dermatology in general medicine (6th ed.). New York, NY: McGraw-Hill. ISBN 978-0-07-138076-8.
- Bernier V, Labrèze C, Bury F, Taïeb A (November 2001). "Nail matrix arrest in the course of hand, foot and mouth disease". European Journal of Pediatrics. 160 (11): 649–51. PMID 11760019.
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