We report a case of selective IgA deficiency in a girl who received a successful renal transplant from a donor with normal serum IgA level. Although the recipient serum was negative for anti-IgA antibody, the donor kidney was washed with a sufficient volume of perfusate and the amount of corticosteroid given to the patient immediately after the revascularization was increased to twice the normal dose. Serum complement level transiently decreased, but recovered during the first week after surgery. Although the patient suffered from acute pyelonephritis of the graft during the fourth month, there has been no evidence of infection thereafter.