Extracorporeal shock wave lithotripsy considerations are as follows: 1, if the isolated kidney urinary stones, need to strictly grasp the indications for surgery, preoperative ureteral stent implantation is required to ensure the smooth flow of urine, to prevent the occurrence of acute renal failure; 2, ureteral stones combined with multiple stones embedded in the ureter, it is recommended that endoscopic lithotripsy; 3, infection, with blood system diseases with a tendency to hemorrhage, cardiopulmonary function of the heavily impaired to the patients with severe cardiac arrhythmias, it is not recommended that the extracorporeal shock wave lithotripsy treatment.