What is "onychomycosis"

n. fungal infection of the nail, especially the toenail.

' Onychomycosis' is a fungal infection of the nail. It is the most common disease of the nails and constitutes about half of all nail abnormalities.

This condition may affect toenails or fingernails, but toenail infections are particularly common. It occurs in about 10 percent of the adult population.