A scar is a mark that is left behind after your skin has healed following and injury or a wound. Most wounds will cause scarring except for very minor ones. The most common reasons for scars are severe acne, wounds and surgery.
There are many different types of scars including keloid scars, acne scars, hypertrophic scars and contracture scars. Common scar treatments to make them less visible include laser scar removal, chemical peels, dermabrasion and scar removal creams, either for the face or body, which are good for treating minor scars.