Tinea pedis is a foot infection due to a dermatophyte fungus. Tinea pedis thrives in warm humid conditions and is most common in young adult men.
Tinea pedis is most frequently due to:
- Trichophyton (T.) rubrum
- T. interdigitale, previously called T. mentagrophytes var. interdigitale
- Epidermophyton floccosum
Tinea pedis has various patterns and may affect one or both feet.
- Chronic hyperkeratotic tinea refers to patchy fine dry scaling on the sole of the foot
-‘Moccasin' tinea is extensive hyperkeratotic tinea, in which the skin of the entire sole, heel and sides of the foot is dry but not inflamed. The affected area does not include the top of the foot. This is usually caused by T. rubrum.
- Athlete's foot i.e. moist peeling irritable skin between the toes, most often in the cleft between the fourth and fifth toes.
- Clusters of blisters or pustules on the sides of the feet or insteps (more likely with T. interdigitale).
- Round dry patches on the top of the foot (ringworm like tinea corporis).
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