Onychomycosis

ABSTRACT Onychomycosis is a commonly encountered fungal infection of the nail that is increasing in prevalence worldwide. Diagnosis and treatment of onychomycosis is essential for any dermatologic practice, and the options available for both are numerous. The subtypes of this infection can help guide diagnostic techniques and determine the route and type of treatment that should be pursued. This article reviews the pathogenic organisms, epidemiology, clinical presentation and subtypes, and diagnostic and current treatment options available to treat this condition.