When there are stones in the urinary system, renal colic may be caused, and the pain is often severe and unbearable. It is caused by obstruction of the lumen of the ureter after the stone has fallen into the ureter. When urine cannot be discharged into the bladder through the ureter, it accumulates in the kidneys, resulting in high pressure in the renal pelvis. The increased tension on the surface of the kidney can produce obvious pain, mostly accompanied by side effects such as nausea and vomiting, requiring immediate pain relief and symptomatic treatment. Firstly, imaging tests such as ultrasound and X-ray are needed to localize the stone. Secondly, extracorporeal shock wave lithotripsy (ECT) is recommended for those who have the condition, which can quickly relieve renal colic caused by stones. Moreover, after extracorporeal shock wave lithotripsy, the size of the stone is reduced and can be discharged from the body quickly. Finally, for larger stones or stones with longer residence time, or stones with acute infection, anti-infective treatment can be given first, and symptomatic pain medication can be given, such as immediate intramuscular injection of 100mg of buclizine hydrochloride, or immediate oral intake of one diclofenac sodium capsule, to alleviate the pain. Wait for the edema phase of the infection to pass, and then perform extracorporeal shock wave lithotripsy or surgical treatment.