Jock Itch or tinea cruris is found in people with eczema, sweat & weight issues. Learn how to prevent & treat this fungal infection. Jock itch is a fungal skin infection that causes an itchy rash in warm, moist areas of the body. The rash often affects the groin and inner thighs and may be shaped like a ring. Tinea cruris (TC), also known as jock itch, is a common type of contagious, superficial fungal infection of the groin and buttocks region, which occurs predominantly but not exclusively in men and in hot-humid climates. [3][4] Jock itch (tinea cruris) is a common fungal infection mainly affecting the groin. Find out what causes it and what treatments can get rid of it fast. Jock itch (tinea cruris) is a fungal skin infection that affects your groin and thighs. Jock itch is very contagious. It can spread through person-to-person contact and contaminated objects. Jock itch treatment includes using antifungal creams, wearing loose clothing, and keeping your skin dry. Jock itch is extremely common and also extremely treatable. Jock itch, or tinea cruris, is a superficial infection on the skin of the groin caused by a few different species of fungi. Having jock itch can be an uncomfortable experience – learn more about what jock itch is and how to treat it. Jock itch (tinea cruris) is a fungal skin infection of the groin area, affecting the upper part of the thighs, buttocks and lower parts of the abdomen. Let’s dive into what can make jock itch worse, how to tell jock itch apart from other similar conditions, and how to successfully treat jock itch. Jock itch is an itchy rash that appears in your groin area. A fungus causes jock itch. Treatment includes antifungal creams, ointments, gels, sprays, powders or pills. Jock itch, medically known as tinea cruris, or ringworm of the groin, is an infection of the groin area caused by fungus and can be rather annoying to anyone who has it. As the common name implies, it causes an itching or a burning sensation in the groin area, thigh skin folds or anus.