Kidney stones of 8mm*4mm usually cannot be discharged and require surgical treatment (e.g. extracorporeal shock wave lithotripsy, etc.). In general, kidney stones with a smooth surface and a diameter of less than 6 millimeters can be promoted to be discharged by taking alpha-blockers (e.g., tamsulosin, etc.) and drinking more water. Gallstones with a diameter of 8 mm by 4 mm are usually more difficult to expel on their own, and need to be evaluated by a doctor before opting for extracorporeal shock wave lithotripsy, which crushes the stones into fine sand before they are expelled from the body through the urine. Or choose percutaneous nephrolithotomy to remove the stone through a percutaneous nephrolithotomy to create a channel. Kidney stones may bring about urinary obstruction, infection, renal insufficiency and other hazards, it is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor standardized treatment, so as not to delay the condition.