Game over! It was a hard-fought match, and Pete's team just won in the final seconds. Now, as he basks in the afterglow of sweet victory, he thinks about all the great things he's going to get for his sweaty efforts — admiring glances, bragging rights, a medal, a trophy, maybe even a mention in the local paper.
But he's feeling a little itchy and uncomfortable in an area due south. And it's starting to burn. Yes, it's something else Pete got for his athletic efforts — jock itch.
Jock itch is a pretty common fungal infection of the groin and upper thighs. It's part of a group of fungal skin infections called tinea. The medical name for jock itch is tinea cruris (pronounced: tih-nee-uh krur-us).
Jock itch, like other tinea infections, is caused by several types of mold-like fungi called dermatophytes (pronounced: dur-mah-tuh-fites). All of us have microscopic fungi and bacteria living on our bodies, and dermatophytes are among them. Dermatophytes live on the dead tissues of your skin, hair, and nails and thrive in warm, moist areas like the insides of the thighs. So, when the groin area gets sweaty and isn't dried properly, it provides a perfect environment for the fungi to multiply and thrive.
You don't have to be a jock to get that itch down south. Jock itch is so named because mostly athletes get it. But it can affect anyone who tends to sweat a lot. It most often affects guys, but girls can get it, too.
Some things can make jock itch more likely to develop. These include lots of sweating while playing sports, hot and humid weather, friction from wearing tight clothes for extended periods (like bathing suits), and sharing clothes with others.
People who have certain health conditions, such as obesity, diabetes mellitus, or other diseases that cause problems with the immune system, are also more likely to develop it.
Jock itch is usually less severe than other tinea infections. If it's not treated, though, it can last for weeks or months. Symptoms of jock itch include:
Jock itch usually responds to self-care: Over-the-counter antifungal creams, powders, and sprays will probably clear it up. Sometimes, though, a person may need to see a doctor for a prescription antifungal cream.
When it comes to healing a fungal infection, it's essential to keep the affected area clean and dry. Follow these steps when treating jock itch:
It's important to continue this treatment for the amount of time recommended in the instructions on the product label. Continue following the steps above even if symptoms disappear sooner to prevent the infection from coming back.
If these steps don't work, or if symptoms last longer than 2 weeks, talk to your doctor, who might need to prescribe a stronger antifungal cream, spray, or pill.
Good hygiene is the most important thing you can do to help prevent jock itch:
If you have a fungal infection somewhere else on your body, like athlete's foot or ringworm, be sure to treat it to help prevent the fungus from spreading to your groin. The best way to prevent the spread is to not touch or scratch your groin area after touching your feet.
Also, use a separate towel on your feet after showering — or if that's not possible, dry your groin before your feet so the towel doesn't spread the infection. If you have athlete's foot, put your socks on before your underwear — this covers your feet so the germs don't get on your underwear.
Jock itch is pretty common. The good news is it can be avoided through proper care and attention — and it's easily treated if you do get it.
Reviewed by: Patrice Hyde, MD
Date reviewed: October 2011
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