Trachyonychia and related disorders: Evaluation and treatment plans

Antonella Tosti, Bianca Maria Piraccini, Matilde Iorizzo

Research output: Contribution to journalReview articlepeer-review

15 Scopus citations


Trachyonychia, or 20-nail dystrophy, is a benign nail disorder that primarily affects children. The condition may be idiopathic or associated with alopecia areata. Diagnosis of trachyonychia is based on the presence of nail roughness due to excessive longitudinal ridging or multiple small punctate depressions. One, a few, several, or all nails may be affected. The pathology shows that the disease is caused by inflammatory damage to the nail matrix due to spongiotic inflammation (72% of cases), psoriasis (10%), or lichen planus (16%). The prognosis of trachyonychia is benign, regardless of the disease which causes it. Treatment is unnecessary and often useless.

Original languageEnglish (US)
Pages (from-to)121-125
Number of pages5
JournalDermatologic Therapy
Issue number2
StatePublished - 2002
Externally publishedYes


  • 20-nail dystrophy
  • Alopecia areata
  • Lichen planus
  • Nail fragility
  • Psoriasis

ASJC Scopus subject areas

  • Dermatology


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