Definition: A raised, fibrous scar that grows beyond the borders of the original wound. Like other hypertrophic scars, they develop because of an overproduction of collagen. Certain people are more prone to keloid scarring than others. Fortunately, acne does not often cause this type of scar.
Keloid Scars
By Angela Palmer, About.com Guide
Updated: December 21, 2007
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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