DefinitionBy Mayo Clinic staff
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Jock itch (tinea cruris) is a fungal infection that affects the skin of your genitals, inner thighs and buttocks. Jock itch causes an itchy, red, often ring-shaped rash in these warm, moist areas of your body.
Jock itch gets its name because it is common in people who sweat a lot, as do athletes. It also often occurs in people who are overweight, but anyone can get this condition.
Although often uncomfortable and bothersome, jock itch usually isn't serious, except possibly for people with weak immune systems. Keeping your groin area clean and dry and applying topical antifungal medications usually are sufficient to treat jock itch.
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