Nail Fungus

This condition may affect toe or fingernails, but toenail infections are particularly common. The prevalence of onychomycosis is about 6-8% in the adult population.[1] The most common type of onychomycosis (80-90%), caused by dermatophytes, is technically known as tinea unguium (tinea of the nails).

See complete Wikipedia article here.

For more information from the American Academy of Dermatology click here.