Jock Itch

Tinea Cruris, commonly called jock itch, is caused by the fungi Epidermophyton floccosum, Trichophyton rubrum, or Trichophyton mentagrophytes. It starts in skinfolds of the genital area and can spread to the upper inner thighs. It’s more common in males.

The lesions have well-demarcated margins that are elevated slightly and are more erythematous (red skin caused by dilation of capillaries) than the central area. Small vesicles, fluid-filled blisters, may be seen, especially at the margins. Acute lesions are bright red. Chronic lesions tend to have more of a hyperpigmented appearance (darker color then surrounding areas) and fine scaling is usually present. This condition has significant itching (pruritus) and generally affects both sides.

Jock itch can also be painful. If you are susceptible you may have repeated infections.

Epidermophyton Floccosum Light Micrograph
Epidermophyton Floccosum Light Micrograph

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