To determine the arteriographic incidence and severity of renal arterial disease in potential renal donors and to evaluate the effects of identifying vascular abnormalities on subsequent donor surgery and to compare the result of transplant between those who underwent angiography and those who did not. Two groups of patients were selected; in first group kidney donors underwent angiography before organ donation unlike the second group. The records of 300 (150 in each group) living renal transplants were reviewed and checked for any positive finding of abnormailities intraoperatively, to see if there is any relationship between angiographic and intraoperative findings. Renovascular abnormality was noted in dictated reports in 18 patients (12%). The most common causes were atherosclerosis and normal variations in anatomy. 20 and 22 intraoperatively diagnosed vascular abnormality occurred in the first and second groups; respectively. 2 year graft and patient survival was 80% and 83% in group one and 88% and 92% in group two, respectively. In this population of potential renal donors, the arteriographic incidence of renovascular disease (12%) was higher than other reports and there is no significant difference in results of transplantation between the two groups. Mild difference in graft and patient survival can be expected as case and control group were not matched in time of surgery and all patients in group one were operated earlier than patients in group two.