Li S, et al. - Researchers searched Medline, Embase, Scopus, Cochrane Library, and Web of Science databases for studies published up to June 30, 2017, without language or data restrictions to investigate whether Low-level light therapy (LLLT) is effective at healing diabetic foot ulcer (DFU) and to provide evidence-based recommendations and clinical guidelines for the future clinical treatment of DFUs. They included Randomized control trials (RCTs) that examined the use of LLLT for DFU treatment. For this systematic review and meta-analysis, 7 RCTs including 194 members were eligible. Findings revealed that LLLT was effective in promoting granulation, reducing ulcer area and improving healing rate and recognized as a potential method in the comprehensive treatment of DFUs. They found that LLLT was a cost-effective for DFUs, particularly for Wagner ulcer classification I∼II.