The aim is to report our experience with renal autotransplantation in treatment of gross hematuria Caused by nutcracker Syndrome (NCS). Between September 2005 and January 2008, 4 patients with mean age of 25.5 years (range: 23-28) presented with gross hematuria were diagnosed to have NCS. After history taking and physical examination; investigation included: urinalysis, urine culture, renal function tests, urine cytology, laboratory tests for coagulation disorders, TB, Schistosomiasis, urinary tract sonography, intravenous pyelography (IVP), ure­throcystoscopy, ureteroscopy, colour Doppler ultra­sonography (CDUS), scout spiral CTscan, and magnetic resonance angiography (MRA). Abnormal investigating included: isolated hematuria in urinalysis, a bloody efflux from left ureteral orifice in urethrocystoscopy, dilatation of left renal vein (LRV) with significant difference in peak systolic velocity in CDUS and dilatation and compression of LRV between aorta and superior mesenteric artery on MRA. Other work-up were normal. So, left renal autotransplantahin was done for all patients. After operation, hematuria disappeared in all patients. No vascular or Urological complication was seen. Follow up ranged from 4 to 24 months. In conclusions, autotransplatation of left kidney is very effective operation for treatment of symptomatic NCS.