What is the common term for tinea cruris?

Tinea cruris is commonly known as jock itch. This term refers specifically to a fungal infection that affects the groin area, characterized by itching, redness, and discomfort. The name "jock itch" originates from its prevalence among athletes, particularly those who engage in activities that promote sweating and moisture in the groin region.

In contrast, the other options present different conditions. Athlete's foot is the term for tinea pedis, which affects the feet. Ringworm of the body refers to tinea corporis, a fungal infection that manifests on the skin in a ring-like pattern, while ringworm of the scalp is known as tinea capitis and affects the scalp area. By understanding these distinctions, it becomes clearer why jock itch is the correct terminology for tinea cruris.