Back ground: Renal autotransplantation is a treatment procedure applying to several diseases that are unable to be treated in situ such as: stenosis of renal artery, injuries of renal vascular or long distal ureters, aneurysm of renal artery or aorta, tumor of kidney or occasional auto renal transplantation. Method: Retrospective study of all cases of renal autotransplantation at Cho Ray Hospital from February 2004 to August 2005.