How is keloid scarring different from hypertrophic scarring?

Keloid scarring is characterized by its tendency to extend beyond the original boundaries of a wound. This is one of the key distinguishing features of keloids compared to hypertrophic scars, which typically remain within the limits of the wound and do not overgrow. Keloids form as a result of an excessive accumulation of collagen during the healing process, leading to raised, thick scars that can continue to grow even after the initial injury has healed.

Unlike hypertrophic scars, which often flatten and improve over time, keloids can persist and may become more prominent. They can vary in size and shape and are not defined by the original wound margins. Understanding this distinction is essential for proper diagnosis and treatment, as keloids may require different management strategies compared to hypertrophic scars, which typically involve less invasive treatments due to their more contained nature.