Keloids: Causes and symptoms
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Although the cause of keloids is unknown, it is thought that they are due to the body's failure to turn off the healing process needed to repair skin. When this occurs, extra collagen forms at the site of the scar, and keeps forming because it is not shut off. This results in keloid formation.
Keloids occur most frequently in individuals of African-American descent and in those with darker skin. Other risk factors include a family history of keloids, surgery, acne, burns, ear piercing, vaccinations, or even insect bites. In addition, women and young people under the age of 30 are more prone to develop them.
Initially, keloids will begin as a small lump where the skin has been injured. This lump grows and can eventually become very large and cosmetically unacceptable.
— Liz Meszaros
