Impetigo is a superficial skin infection caused by either streptococci or staphylococci. Here it is on the buttocks, but it is seen more frequently in children on the face, upper chest, and arms. (Image courtesy of the Centers for Disease Control and Prevention.)
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.