Hyper trophic scarring happens when the body overproduces collagen during the healing process. This type of scarring is seen in about 50% of wounds after surgery and more than 50% of deep burns. Onset is clinically evident by four weeks post-trauma. Healing progresses over months with some late resolution. The scar is red, raised and itchy, and typically occurs where there is tension on the wound, especially near joints where the scarring can cause contracture. Incidence is greater with increased wound inflammation and for wounds that have been open for more than three weeks (Atiyeh, 2007).