What are the causes of felon?

Updated: Mar 11, 2021
  • Author: Brandon Stein, MD; Chief Editor: Steven C Dronen, MD, FAAEM  more...
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Staphylococcus aureus is the most common cause of a felon and is often methicillin-resistant (MRSA). [5, 6, 7, 3]

Streptococcal specias are one of the other leading causes of a felon. 

Gram-negative organisms have been reported in immunosuppressed patients. Lancet-induced trauma from fingertip blood glucose measurements have been implicated as an etiology.

Eikenella corrodens has been reported in persons with diabetes who bite their fingernails. [5, 8, 9]


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