足部溃疡是糖尿病最常见和严重并发症之一。发生率约为糖尿病病人的 2 5 % ,糖尿病病程超过 2 0年者发生率几近 5 0 %。周围神经营养障碍和肢体缺血是糖尿病病人并发足部溃疡的主要原因。足部溃疡常合并感染和足趾坏疽 ,需合理应用抗生素和清创术 ,严重者需截趾和截肢 ;动脉旁路尤其是患肢远侧段动脉旁路术能提高救肢率 Foot ulcers are one of the most common and serious complications of diabetes. The incidence was about 25% of patients with diabetes and the incidence of diabetes over 20 years was nearly 50%. Peripheral neurotrophic disorders and limb ischemia are the main causes of diabetic foot ulcers. Foot ulcers often associated with infection and toe gangrene, the need for rational use of antibiotics and debridement, severe cases need to be amputated and amputation; arterial bypass especially distal limb artery bypass can improve the salvage rate