We report the results of 41 consecutive renal transplantations performed on 39 children (median age 2.7 years). Twenty-six recipients were less than 5 years old. Twenty-one recipients (13 under the age of 5 years) received cadaver (CAD) grafts. All grafts except 2 were from adult donors and were placed extraperitoneally. Patients were on triple immunosuppression (cyclosporine plus azathioprine plus methylprednisolone). Mean follow-up time was 2.3 years. No vascular and only one ureteral complication was seen. Acute tubular necrosis occurred in 3 patients (7.3%). No grafts were lost due to acute rejection. Three-year patient survival and 1-year graft survival were 100%. The overall 3-year actuarial graft survival was 86%. Three-year survival of grafts from living-related donors (LRD) was 92% and that of CAD grafts 75%. In recipients younger than 5 years, 3-year LRD graft survival was '89% and CAD graft survival 73%. No significant differences in graft survival between recipients of different age groups or between LRD and CAD grafts were found. We conclude that results of renal transplantation in children under 5 years of age are comparable to those of older children, even using CAD grafts, when adult donors and triple immunosuppression are used.