Patients with kidney stones can experience significant back pain during the process of stone removal. This is due to obstruction of the ureter or the ureteropelvic junction caused by the stones, which can lead to right hydronephrosis and pelvic hypertension, resulting in significant back pain. At the same time, if the stone is discharged into the ureter, it can also produce ureteral spasm, which can also produce significant back pain or abdominal pain, which are common complications in the process of stone discharge, and the pain can be gradually relieved by extracorporeal shock wave lithotripsy and medication for pain relief. Extracorporeal shock wave therapy is used to break up the stones, and the stones are discharged more smoothly due to their reduced size, and the obstruction caused will be relatively light, and the pressure in the renal pelvis will decrease, so the symptoms of back pain will be reduced. When the stone is completely discharged into the bladder, the symptoms of back pain can be completely relieved, and if the stone is discharged into the bladder, it can be quickly discharged through the urethra to achieve a cure.