Keloids are overgrowths of scar tissue that follow skin injuries. Keloids may appear after such minor trauma as ear piercing. Dark-skinned individuals tend to form keloids more readily than lighter skinned individuals. These patches of keloid have become darkly pigmented.
Review Date: 11/20/2012 Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.