Onychomycosis Differential Diagnoses

Updated: Jul 13, 2017
  • Author: Antonella Tosti, MD; Chief Editor: Dirk M Elston, MD  more...
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DDx

Diagnostic Considerations

Also consider the following:

  • Bacterial paronychia (including pseudomonal infection)
  • Drug reaction (eg, tetracyclines, quinolones, psoralens)
  • Periodic nail shedding
  • Thyroid disease
  • Yellow nail syndrome
  • Melanonychia (caused by malignant melanoma)

Differential Diagnoses