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Blackheads (comedones)

Blackheads (comedones)

Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.




Review Date: 12/11/2009
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Also reviewed by David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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