Methods: From February 2008 and June 2013, a total of 36 patients received autologous fat grafting in scar areas. Patients who Douleur Neuropathique 4 Questions (scores >4/10) were enrolled this study. The Visual Analogue Scale (VAS), and Neuropathic Pain Symptom Inventory (NPSI) were used to evaluate pain preoperatively and postoperatively after 1 week, 4 weeks, and 24 weeks. The mechanism of trauma, duration of allodynia, fat graft volume, and total follow-up time were recorded.