causes of athlete's foot
Athlete's Foot-Cause. Athlete's foot (tinea pedis) is a fungal infection of the skin of the foot. Most athlete's foot is caused by one of two types of fungus. 1  Trichophyton mentagrophytes often causes toe web or vesicular (blisterlike) infections. 2  The infection appears suddenly, is severe, and is easily treated. 3  Trichophyton rubrum often causes moccasin-type infections.