Ringworm is a fungal infection of the skin. It usually produces a ring-shaped lesion which appears to clear in the center. The edges of the lesion may be slightly raised and often itch. Central clearing can be seen in some of the infected areas on the leg of this person.
Review Date 10/8/2018
Updated by: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.