What is a fungal infection?
A fingernail or toenail infection that is caused by a fungus is called onychomycosis (say: "on-ee-koh-my-ko-sis"). Toenails are more likely to become infected than fingernails.
Source
Treating Onychomycosis by P Rodgers, M.D. and M Bassler, M.D. (American Family Physician February 15, 2001, http://www.aafp.org/afp/20010215/663.html)
Written by familydoctor.org editorial staff
Reviewed/Updated: 11/10
Created: 02/01