Jock Itch (tinea cruris)

Jock itch, or groin ringworm (tinea cruris), involves the skin of the groin and sometimes the upper thighs and buttocks. It is most often seen in adult men, but may also occur in women.

Heat, humidity, excessive perspiration and tight undergarments promote fungal growth. In many cases, the source of the infection is the patient's own feet. Jock itch and athlete's foot frequently occur together or in close succession.

Tinea cruris usually appears as scaly, ring-shaped patches with slightly raised borders that develop in the groin area and spread outward to one or both thighs, causing some redness and itching. The skin of the scrotum and penis are usually not affected, a feature that helps distinguish this condition from some other skin diseases with similar symptoms.

Before treating jock itch yourself, check with your dermatologist, who can diagnose the condition and prescribe the correct medication. Jock itch is usually effectively treated with an over-the-counter topical antifungal product or a prescription medication.