Scarring Excessive Underlying Cause
Keloids form when the normal balance between scar formation, and scar breakdown, is disturbed. Usually, as the healing skin becomes stronger, the body removes some scar tissue. In a person with keloids, the body forms more scar tissue than is needed for healing. The cause for keloids is unknown.
Continue to Scarring Excessive Anatomy
- Kelly AP. Medical and surgical therapies for keloids. Dermatol Ther. 2004;17(2):212-8. 
- Urioste SS, Arndt KA, Dover JS. Keloids and hypertrophic scars: review and treatment strategies. Semin Cutan Med Surg. 1999 Jun;18(2):159-71.