Hypertrophic and Keloid Scars
Hypertrophic and Keloid Scars — raised scars that form when the skin overproduces collagen during wound healing. Hypertrophic scars stay within the boundaries of the original injury, while keloids grow beyond them and can continue expanding over time.
Key points
- Both scar types result from an exaggerated collagen response after skin trauma such as acne, piercings, surgery, or burns.
- Hypertrophic scars often flatten and fade gradually on their own, whereas keloids rarely resolve without treatment.
- Keloids are more common in people with deeper skin tones and can have a genetic or familial tendency.
- Common professional interventions include silicone sheets or gels, corticosteroid injections, laser therapy, and pressure dressings.
Frequently asked
What is the difference between a hypertrophic scar and a keloid?
A hypertrophic scar stays confined to the area of the original wound, while a keloid spreads beyond the injury site and often keeps growing.
Can silicone products help flatten raised scars?
Silicone sheets and gels are widely studied and can help soften, flatten, and reduce the redness of raised scars when used consistently over several weeks to months.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
