For unknown reasons, scar tissue begins to form in an uncontrolled manner. Proteins continue to multiply after the wound has been covered. The process can continue for weeks or months. This is especially true for the following areas:
- Earlobes
- Shoulders
- Upper back
- Chest
- Back of scalp and neck
Factors that increase your chance of keloids include:
- African American, Asian, or Hispanic ethnicity
- Between 10-30 years old
- Deep skin wounds, such as those from burns or surgical scars
-
Scars from
acne
, vaccinations, or
chickenpox
- Family history