Jock Itch (tinea cruris)

Overview

Jock itch or tinea cruris is a common fungal infection of the skin around the groin and inside the thighs. Athletes aren't the only ones who get jock itch. Men tend to be more susceptible than women. But regardless of your gender if you sweat a lot you're more likely to develop jock itch. The infection is characterized by an itchy red ring-shaped rash.

Causes

All fungal infections are caused by dermatophytes microorganisms that live on cells in the outer layer of the skin. They thrive in warm moist areas of the body. Jock itch is contagious and you can acquire it by sharing a towel or clothing with someone who is infected. It often affects men who wear tight underwear or improperly washed athletic supporters.

Symptoms

  • Itching and redness in and around the genitals inner thighs and buttocks
  • Burning sensation around the groin
  • Flaking peeling or cracking skin in the groin area

Treatment

Because the fungus affects only the top layer of the skin jock itch is easily treated with topical creams or ointments. These are available over-the-counter. However if the rash doesn't improve within two weeks your doctor may prescribe stronger topical or oral medication. People with weakened immune systems including those with diabetes and HIV/AIDS may find it more difficult to rid themselves of the condition.

Prevention

To limit the amount of bacteria on your skin be sure to shower after exercising participating in sports or whenever you have been sweating excessively. Also:

  • Wear loose fitting clothing made of cotton or synthetic materials designed to wick moisture away from the surface.
  • Change your underwear at least once a day and more often if you tend to sweat a lot.
  • Avoid sharing clothing and towels or washcloths.
  • Allow the groin to dry completely after showering before covering with clothes.

Antifungal powders or sprays may be used once a day to prevent infection.