Hypertrophic Scarring - It is a dermal condition characterized by deposits of exorbitant amounts of collagen which gives rise to a raised scar. Like keloids, they form mostly at the sites of pimples,cuts and burns, body piercings . They mostly contain nerves and blood vessels. They generally develop after thermal or traumatic injury that involves the deep layers of the dermis and express high levels of TGF-β.
Keloids - A keloid,which is a type of scar , depending on its maturity, is composed mainly of either early or late collagen. It is a result of an overgrowth of granulation tissue at the site of a healed skin injury which is then slowly replaced by collagen. Keloids are firm, rubbery lesions or shiny, fibrous nodules, and can vary from pink to flesh-coloured or red to dark brown in colour. A keloid scar is benign and not contagious, but sometimes accompanied by severe itchiness and pain,and changes in texture. In severe cases, it can affect movement of skin.