What can form after trauma or injury to the skin?

Keloid scars are a unique form of scar tissue that develops after trauma or injury to the skin. When the skin is injured, the body initiates a healing process, which involves the production of collagen. In some individuals, this healing process can go awry, leading to an overproduction of collagen. The result is a keloid, which is characterized by its raised, thickened appearance that extends beyond the original boundaries of the wound.

Keloids can occur in various locations on the body and are often more prominent in certain skin types and tones. The formation of keloids is also influenced by genetics, meaning some people are more predisposed to developing them than others.

Blisters can also form after skin trauma, but they are typically temporary fluid-filled sacs that develop in response to friction, burns, or other injuries, and they typically resolve on their own without leaving a lasting mark. Other conditions, such as frostbite and fungal infections, result from different mechanisms entirely and do not specifically relate to the scarring process following skin trauma.