Merck & Co., Inc. is a global research-driven pharmaceutical products company. Committed to bringing out the best in medicine
Contact usWorldwide
HomeAbout MerckProductsNewsroomInvestor InformationCareersResearchLicensingThe Merck Manuals

The Merck Manual--Second Home Edition logo
 
click here to go to the Index click here to go to the Table of Contents click here to go to the search page click here for purchasing information
Chapter 215. Noncancerous Skin Growths
Topics: Introduction | Moles | Skin Tags | Lipomas | Dermatofibromas | Growths and Malformations of the Vessels | Seborrheic Keratoses | Keratoacanthomas | Keloids | Epidermal Cysts
 
green line

Keloids

Keloids are smooth, shiny, flesh-colored, raised growths of fibrous tissue that form over areas of injury or surgical wounds.

Keloids are an extreme overgrowth of scar tissue over healed wounds. They may form in the months after an injury. They may be raised as much as ¼ inch above the surface of the skin. Keloids may form in any scar, even those resulting from severe acne. They are much more common in blacks than in whites and typically develop on the chest, shoulders, back, and, sometimes, face and earlobes. Keloids do not hurt, but they may itch or be sensitive to touch.

Keloids respond poorly to therapy, but monthly injections of corticosteroids may flatten them somewhat. A doctor may try surgical or laser removal followed by corticosteroid injections, but new keloids often form in the scar resulting from the treatment. Some doctors have applied silicone patches to keloids and have had some success in flattening them.

Site MapPrivacy PolicyTerms of UseCopyright 1995-2004 Merck & Co., Inc.