Athlete's foot causes
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Athlete's foot Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Causes
The body normally hosts a variety of saprotrophic microorganisms that rapidly cause infection. Athlete's foot is a layman's description of a skin fungal infection, and is medically referred to as tinea pedis. It may be associated with several different fungi, including yeasts. The most common fungi causing tinea pedis are Trichophyton rubrum and T. mentagrophytes. Fungal infections of the skin are called dermatophytosis.
Dermatophytes may be spread from other humans (anthropophilic), animals (zoophilic) or may come from the soil (geophilic). Anthropophillic dermatophytes are restricted to human hosts and produce a mild, chronic inflammation. Zoophilic organisms are found primarily in animals and cause marked inflammatory reactions in humans who have contact with infected cats, dogs, cattle, horses, birds, or other animals. Geophilic species are usually recovered from the soil but occasionally infect humans and animals. They cause a marked inflammatory reaction, which limits the spread of the infection and may lead to a spontaneous cure but may also leave scars. Infections or infestations occur when dermatophytes grow and multiply in the skin.