The cost of fighting kidney stones is about 1000 RMB, but the price may vary from hospital to hospital and from region to region. Extracorporeal shock wave lithotripsy is the most commonly used method of stone removal, mainly through the lithotripter to focus energy on the stone, and then through the energy impact to break the stone. However, before doing shock wave lithotripsy, the necessary tests must be completed before doing extracorporeal lithotripsy, so there is an extra cost, such as routine blood, coagulation function and liver and kidney function tests, to exclude any contraindications; in addition, the abdominal plain film and ultrasound must be completed before the operation to clarify the size of the stone and whether it is suitable for lithotripsy.