The stones are located in the lower calyces of the kidneys, and the treatment methods used vary according to the size, nature and shape of the stones. The main treatment modalities include drug lithotripsy, extracorporeal shock wave lithotripsy, transurethral ureteroscopy lithotripsy and percutaneous renal chondroscopy lithotripsy and lithotripsy. 1. If the stone is less than 0.6 centimeters and the surface is smooth, and there is no urinary tract obstruction below the stone, medication can be used for lithotripsy. Such as uric acid stones can be treated with sodium hydrogen potassium citrate, sodium bicarbonate or oral allopurinol, etc., the effect is better. Drugs need to be applied under the guidance of a doctor. 2. If the diameter of the stone is less than or equal to 1 cm, extracorporeal shock wave lithotripsy can be used. Contraindications include distal urinary tract obstruction, pregnancy, serious cardiovascular and cerebrovascular diseases, aortic aneurysm, etc. 3. If extracorporeal shock wave lithotripsy fails, transurethral ureteral lithotripsy can be used, and percutaneous nephrolithotripsy can be used if the diameter of the stone is greater than 2cm. Once the kidney stone, should immediately go to the hospital for examination and early treatment.