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Tinea refers to a superficial fungal infection of the skin, hair, and nails caused by dermatophytes, which are filamentous fungi. Trichophyton rubrum is the most common cause of dermatophyte infection, accounting for nearly 70% of infections worldwide. These infections are extremely common, but are more prominent in warm, tropical climates. Tinea is seen more commonly in black and Asian patients, has a predilection for young adults, and is three to four times more common in males.