When nails fall off, the first thing to observe is whether there is an intact nail bed, if there is no nail bed, the chances of possible regrowth of nails will be less. If the nail bed is intact, it should be disinfected with medicated water first. Heparin is recommended although it is expensive, but it is more effective, in addition, it has the efficacy of activating blood. General post-surgical dressing change are used heparin, initially every 3 days to change the medicine, with heparin coating, and when the traumatic skin is dry you can change it every 5 days. Pay attention to protect the nail from re-injury to prevent re-infection, if re-infection, serious and may be life-threatening. Nails can usually grow back in 3-4 months. However, there is a possibility that they may grow back not necessarily the way they were originally, depending on the injury to be sure.