Nitric oxide(NO) is a short-life free radical that acts as the small biological molecule,and exists in body extensively.Since its discovery over 20 years ago,NO has been found to play an important regulation role in angiogenesis,nerve and immune system.The subsequent studies also showed that NO exerted an important biological action in wound repairing and healing,which involved in the following phases of wound repair: inflammation,cell proliferation,matrix deposition and remodeling.This paper reviews recent...