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Jock Itch

What is Jock Itch?

Jock itch, also known as tinea cruris, is a fungal infection of the skin in the groin and upper thighs. The fungus that most commonly causes jock itch is called Trichophyton rubrum. Trichophyton rubrum also causes fungal infections of the toes and body.

Lesions caused by jock itch can extend from the crease between the inner thigh and pelvis, over the adjacent upper inner thigh, and into the anal area.

Jock itch affects men and women. Men are affected more often than women. In men, the penis and scrotum are seldom affected.

Symptoms of Jock Itch

Some of the most common symptom are itching, chafing and burning. Lesions usually appear as a rash with defined, elevated edges.

How did I get Jock Itch?

Jock itch occurs when the groin area becomes warm and sweaty, allowing fungi to build up. Jock itch can also occur through a transfer of athlete’s foot, or from contact with clothing, bedding and towels of infected individuals.

Can Jock Itch be Treated?

Yes. Jock itch is best treated with topical creams or ointments since the fungus only affects the top layer of skin. The creams and ointments can be purchased at a pharmacy or prescribed by your doctor.

How is Jock Itch Diagnosed?

Your doctor will take a small sample of your skin and test it under a microscope.

How to Prevent Jock Itch

  • Wear clean cotton underwear and loose fitting pants
  • Keep your groin area dry and perspiration-free
  • If you have athlete’s foot, avoid using towels that have come into contact with the infected area
  • Wear loose fitting clothing made of cotton or synthetic materials designed to wick moisture away from the surface.
  • Avoid sharing clothing and towels or washcloths.
  • Allow the groin to dry completely after showering before covering with clothes.
  • Use antifungal powders or sprays may be used once a day to prevent infection.

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