A jock itch rash is a type of fungal infection known as "ringworm." The rash, or infection, affects people of all ages and is treated with medication, according to WebMD.
A jock itch rash presents as a rash that is typically red with raised edges. The main symptom beside the rash is severe itching and the rash often spreads when it is scratched. Jock itch is common with athletes since it tends to grow in areas that are exposed to more moisture, such as the groin. The rash can also be spread from person to person. This makes it more common in locker rooms and other areas prone to moisture.