Scars are a natural part of the healing process after the skin has been injured. They form when the dermis (the deeper layer of skin) is damaged, and the body produces collagen to heal the wound. Scars can be classified into several types: Hypertrophic Scars: Raised, thick scars that form as a result of excessive collagen production during healing. Keloid Scars: A more severe type... https://www.swarnacosmocare.com/acne-scar-removal-treatment.php