The human body has amazing powers of recovery, yet wound healing is little more than a quick patch-up job. Processes in the skin seem to go into overdrive and leave behind disfiguring scars, while some wounds, such as leg ulcers, refuse to close up at all. But new research is pointing the wayto faster, smoother healing. Peter Evans meets the scientists who are working towards a future where surgeons can repair wounds perfectly, with no unsightly scars, and no need to go back for repeat skin grafts on burns. Producer Sarah Griffiths. E-MAIL: scirad@bbc.co.uk