What causes chronic paronychia?

Updated: Oct 09, 2020
  • Author: Elizabeth M Billingsley, MD; Chief Editor: William D James, MD  more...
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Chronic paronychia is caused primarily by the yeast fungus Candida albicans. [12] Other, rare causes of chronic paronychia include the following:

  • Bacterial, mycobacterial, or viral infection
  • Metastatic cancer

  • Subungual melanoma

  • Squamous cell carcinoma

Therefore, benign and malignant neoplasms should always be excluded when chronic paronychia does not respond to conventional treatment.

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