A fungal infection is a condition affecting the skin, nails, or mucous membranes caused by microscopic fungi. It most commonly presents with itching, peeling, redness, cracked skin, or changes in the structure and color of the nails.

Fungal infections often develop in conditions of high humidity, with skin microtrauma, decreased immunity, or after contact with contaminated surfaces. Treatment depends on the location and type of pathogen and may require antifungal agents. Proper hygiene is also important to reduce the risk of reinfection.