Tinea pedis

Overview


Plain-Language Overview

Tinea pedis is a common fungal infection that affects the skin of the feet, especially the areas between the toes. It is caused by fungi called dermatophytes, which thrive in warm, moist environments like sweaty shoes. The infection often leads to itching, redness, and peeling skin, which can be uncomfortable and sometimes painful. It primarily involves the skin system, disrupting the normal barrier and causing inflammation. If untreated, it can spread to other parts of the foot or even to other people through direct contact or shared surfaces. The condition is sometimes called athlete’s foot because it frequently affects people who are active or wear tight footwear. Overall, it impacts daily comfort and foot health.

Clinical Definition

Tinea pedis is a superficial cutaneous infection caused by dermatophyte fungi, primarily species of Trichophyton, that invade the keratinized layers of the skin on the feet. The pathogenesis involves fungal colonization of the stratum corneum, leading to an inflammatory response characterized by erythema, scaling, and pruritus. It is the most common dermatophytosis and is highly contagious, often transmitted via fomites or direct contact. The infection typically affects interdigital spaces but can also present as moccasin-type or vesiculobullous forms. Clinically, it is significant due to its potential for chronicity, secondary bacterial infection, and impact on quality of life. Diagnosis is based on clinical presentation supported by laboratory confirmation. Understanding the fungal etiology and host factors is essential for effective management.

Clinical Presentation


Diagnostic Workup


Pathophysiology


Treatments


Prevention


Outcome & Complications


Differential Diagnoses


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