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Blackheads (comedones)

Blackheads (comedones)

Overview

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

Review Date 7/23/2015

Updated by: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.