Normally when there is an injury to the skin, it heals with scar formation. The scar is flat, skin colored and limited to the site of injury. In some people, the scar formation is quite aggressive causing a scar which is raised from the surface of the skin, altered color and extends beyong the site of injury often in a claw shaped fashion. This is known as keloidal scarring or keloid and often runs in families.
Keloids commonly happen in areas of increased skin tension like shoulders, mid chest, upper back, knees , elbows of any suture lines. Keloids in active stage are often itchy..Keloids can occur as a response to any trauma, infection, acne, boils, surgical scar, laser etc
Two non surgical treatments that are safe and effective in keloid are cryotherapy and Intralesional injection of triamcinolone acetonide and 5 fluouracil.
These treatments are repeated every 3 to 4 weeks and may take 4 to 10 sessions for resolution.
For keloids involving the ear, generally a surgical excision is performed along with intralesional injection.
Care must be taken to avoid injuries to prevent formation of keloid.