Keloid is a type of scar which is firm, rubbery, fibrous nodule and can vary from pink to flesh-colored or red to dark brown in color. They can be the result of acne, insect bites, scratching, burns, or other skin trauma. Keloid scars can develop after surgery. They are more common in some sites such as central chest, the back and shoulders and the ear lobes.
They can be cured with Cryosurgery technique where super cooled nitrogen is used to remove keloids.
