Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Tinea cruris
Medically reviewed by Min Clinic Staff | Updated: January 2026
Tinea cruris: A superficial fungus infection of the crotch and perineum known popularly as jock itch. Good general hygiene helps prevent it, as does keeping the area clean and dry . Laundering underwear and athletic supporters frequently also helps, as do an antifungal or drying powder after bathing.