Nail Disorders

Antonella Tosti, Bianca M. Piraccini

Research output: Chapter in Book/Report/Conference proceedingChapter


The nails of newborns are thin and soft, and frequently present a certain degree of koilonychia, which is especially evident in toenails. The thickness and breadth of the nail plate increase rapidly during the first two decades of life. Nail diseases are a rather uncommon cause of dermatological consultation in children. Nail signs of congenital and hereditary nail diseases usually develop early during childhood, and their presence may be a clue to the diagnosis of a syndrome or a systemic disorder. Although the acquired nail conditions observed in childhood are similar to those of adults, the prevalence of several diseases may vary in these different age groups. Some conditions, such as parakeratosis pustulosa and twenty-nail dystrophy, are exclusively or typically seen in children.

Original languageEnglish (US)
Title of host publicationHarper's Textbook of Pediatric Dermatology
Subtitle of host publicationThird Edition
Number of pages9
ISBN (Print)9781405176958
StatePublished - May 24 2011


  • Exostosis
  • Koilonychia
  • Lichen planus
  • Naevi
  • Nails
  • Onychodystrophy
  • Parakeratosis pustulosa
  • Paronychia
  • Psoriasis
  • Trachyonychia

ASJC Scopus subject areas

  • Medicine(all)


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