Keloids are the excess growth of scar tissue at the site of a healed skin injury.
Hypertrophic scar; Keloid scar; Scar - hypertrophic
Causes, incidence, and risk factors
Keloids occur from such skin injuries as:
- Ear piercing
- Minor scratches
- Surgical cuts
- Traumatic wounds
- Vaccination sites
They are more common in people ages 10 to 20, and in African Americans, Asians, and Hispanics. Keloids often run in families. Keloidosis is a term used when many or repeated keloids occur.