Scars are areas of fibrous tissue that replace normal skin (or other tissue) after injury or disease. A scar results from the biologic process of wound repair in the skin and other tissues of the body. Thus, scarring is a natural part of the healing process. With the exception of very minor lesions, every wound (e.g. after accident, disease, or surgery) results in some degree of scarring. A scar is a natural part of the body's evolved reaction to injury and is correlated with healing.