Kidney stones are treated by extracorporeal lithotripsy, which is the method of extracorporeal shock wave lithotripsy. This is a treatment method chosen for stones with a relatively small volume, below 1.5 cm, and the symptoms of urinary tract obstruction are not very serious. The patient is then placed on a lithotripsy bed and the stones are located and broken up by the shock wave generated by the machine. Because the stones are broken into small pieces or even powder, the patient can discharge these smaller stones in the urine through the ureter, which can be combined with oral lithotripsy medication to facilitate the discharge of stones. If the stones become obstructed in the narrow part of the urinary tract, then symptoms such as back pain, frequent urination and urinary urgency may occur, and pain relieving and antispasmodic medication is needed. Patients who discharge stones on their own must drink more water to increase the volume of urine by drinking a lot of water, which will promote the discharge of already broken stones through the effect of urine flushing.