Ringworm

How is ringworm diagnosed?

Often, the diagnosis of ringworm is obvious from its location and appearance. Otherwise, skin scrapings for microscopic examination and a culture of the affected skin can establish the diagnosis of ringworm. If the diagnosis is unclear, a potassium hydroxide (KOH) preparation of a skin scraping can be reviewed under the microscope to confirm the diagnosis of a fungus. If a fungus infection is present and the skin problem is misdiagnosed, inappropriate treatment might be prescribed that could actually worsen the infection.

Reviewed on 5/20/2014

From WebMD