In general, kidney stones > 0.6 cm cannot be expelled by themselves. Therefore, kidney stones 0.9cm can be treated with lithotripsy. Kidney stones are often treated with extracorporeal shock wave lithotripsy. Lithotripsy involves the use of high-energy shock waves to fracture the stone under the localization of ultrasound or X-ray to pulverize the stone, after which it is discharged with urine. The indications for lithotripsy include kidney and upper ureteral stones of 0.6cm~2cm, and the contraindications include obstruction at the distal end of the stone, as well as pregnancy, coagulopathies, obesity, aortic aneurysm, and severe cardio-cerebral vascular diseases. To summarize, patients with kidney stones should seek timely medical treatment.