Keloids form when the body produces an excessive amount of collagen during the wound healing process. This leads to raised scar tissue that extends beyond the original injury site.

Keloids are raised, smooth, and often have a shiny appearance. They are usually darker than the surrounding skin and can grow over time.

The main difference is that keloids extend beyond the original wound boundaries, while hypertrophic scars remain within the original wound's boundaries and do not extend further.

Using products like silicone sheets and specialized scar creams can help reduce the appearance of keloids. Consulting a dermatologist can also provide specialized treatments for managing keloid scars.