1. Keloids -- University Of Maryland Medical Center
Causes, incidence, and risk factors: Keloids, Keloids are an overgrowth of scar tissue at the site of a healed skin injury. Keloidosis is a term used when multiple or repeated keloids occur. Keloids are an overgrowth of scar tissue at the site of...
http://www.umm.edu/ency/article/000849.htm

2. Keloids -- Hmh Home Page
Causes, incidence, and risk factors: Keloidosis is a term used when multiple or repeated keloids are produced. Keloids are an overgrowth of scar tissue at the site of a skin injury. Keloids occur from such skin injuries as surgical incisions,...
http://www.hmh.net/adam/encyclopedia/hhe%20articles/000849.htm