Athlete's Foot: Symptoms, Causes & Treatment - A Comprehensive Guide

The correct answer is: athlete's foot.

Athlete's foot is a common fungal infection of the skin that affects the feet. It is caused by a type of fungus called dermatophyte, which thrives in warm, moist environments. Athlete's foot can spread through direct contact with an infected person or by contact with contaminated surfaces, such as floors, towels, or shoes. Symptoms of athlete's foot include itching, scaling, redness, and burning of the skin on the feet. In severe cases, the infection can spread to the toenails, causing them to become thick, discolored, and brittle.