Which lab studies are indicated in the workup of intertrigo?

Updated: Nov 13, 2020
  • Author: Paras Vakharia, PharmD; Chief Editor: William D James, MD  more...
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Basic microbiologic diagnostic studies can be performed to identify a potential causative agent of intertrigo and guide antimicrobial therapy.

Potassium hydroxide (KOH) test, Gram stain, or culture is useful to exclude primary or secondary infection and to guide intertrigo therapy.

A skin biopsy generally is not required unless the intertrigo is refractory to medical treatment.

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