Keloid scars are a type of raised scar that occurs where the skin has healed after an injury. They are the result of an overproduction of collagen during the healing process, leading to a thick, raised, and often irregularly shaped area of skin. Unlike hypertrophic scars, keloids grow beyond the boundaries of the original wound and can continue to enlarge over time. They can occur anywhere on the body but are most commonly found on the chest, shoulders, earlobes, and cheeks. Keloid scars can cause discomfort, itchiness, and self-consciousness due to their prominent appearance.

1) Keloid Scars
Keloid scars are raised, thick, and often grow beyond the boundaries of the original wound. They can cause discomfort, itchiness, and self-consciousness due to their prominent appearance.

2) Hypertrophic Scars
Hypertrophic scars are raised, red scars that remain within the boundaries of the original incision or wound. They are similar to keloid scars but do not grow beyond the wound site. These scars can be itchy and may improve over time but often remain noticeable.

3) Atrophic Scars
Atrophic scars are sunken or pitted scars caused by a loss of tissue, which can occur due to acne, chickenpox, or certain surgeries. These scars create a crater-like appearance on the skin and can be particularly bothersome on the face.

4) Contracture Scars
Contracture scars result from burns or significant skin injuries. They cause the skin to tighten, which can impair movement and lead to discomfort. These scars can be severe, affecting underlying muscles and tendons, and may require surgical intervention for improvement.