hypertrophic scar after surgery

Hypertrophic scar has a raised scar base that lies above the surrounding skin. The difference between a hypertrophic scar and keloid is the growth pattern. A hypertrophic scar grows in height (Fig.3), but a keloid grows in width. A hypertrophic scar usually occurs after surgery (Fig.3) or an injury due to severe inflammation, also as a result of associated secondary infection when the immune system is impaired, endocrine dysfunctions and others.