Fungal infection in the skin of the groin and inner thighs. Also called jock itch.

Tinea cruris is a fungal infection that affects the skin of the groin and inner thighs, and buttocks. This condition is also called jock itch.

It causes an itchy, inflamed, often ring-shaped rash in these warm, moist areas.

Treatment includes keeping the groin area clean and dry and applying topical antifungal medicine.