An 18 year old boy met with an unfortunate accident on the road. He was pillion-riding on a bike which was knocked down by a 4-wheeler near krishnagiri in Tamilnadu. He was immediately rushed to the Govt. Hospital at krishnagiri,initial hemodynamic stabilization was done and was shifted to a major hospital in Bangalore. On evaluation,he was found to have an unstable fracture of the pelvic ring and a closed fracture of the shaft of his right femur. He however.continued to be hemodynamicallly unstable and his Hemoglobin was hovering around 5.5g% inspite of repeated blood transfusions.at this stage,he was transfered to our hospital for angio-embolization of pelvic vessels.At CT angiogram was done here, which did not show any active bleeder. However,there was a large retro-vesical hematoma collection displacing the urinary bladder.The interventional Radiologist opined that angio-embolization was not necessary.