Background: Diabetes mellitus has increased the risk of more complications. One complication that often occurs is peripheral vascular diseases and decreased foot perfusion of patients by causing endothelial and smooth muscle cell dysfunction in peripheral arteries. Buerger's exercise is a simple intervention for improving the peripheral circulation of patients with Diabetes mellitus. Therefore, Aim of the study was to evaluate the effect of Buerger-Allen Exercise on improving lower extremities perfusion among patients with type 2 Diabetes Mellitus. Study design: A quasiexperimental design was utilized to achieve the aim.