The main clinicopathologic damage of ureteral stones is that they can lead to hydrocele above the stone, that is, they can lead to hydrocele in the ureter above the stone as well as in the renal pelvis, which can lead to a gradual increase of pressure in the renal pelvis, which can lead to impaired renal function. So the main danger of ureteral stones is that they can lead to unilateral kidney function damage. If the stone cannot be dislodged with medication, the patient needs to consider extracorporeal shock wave lithotripsy or endoscopic surgery for treatment. In the case of upper ureteral stones, if the diameter of the stone is 0.6-1cm, the patient can choose extracorporeal shock wave lithotripsy. If extracorporeal shock wave lithotripsy fails or if the stone diameter is larger than 1cm, the patient can choose to do ureteroscopy or ureteroscopic lithotripsy. Ureteroscopic lithotripsy is preferred for patients with lower ureteral stones.