This is a picture of Athlete's foot (tinea pedis). Tinea infection is caused by a fungus that grows on the skin, and is also referred to as ringworm. Cutaneous (skin) tinea infections are often named by their location such as pedis, meaning foot.
Review Date 6/19/2021
Updated by: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.