A stone in a section of the ureter (the ureter is generally divided into upper, middle and lower sections) is a ureteral stone, and is rare in origin, mostly due to a dropped kidney stone. It is a disease that may cause renal colic, hematuria, obstruction or infection or even kidney failure. The ureter belongs to the upper urinary tract, which is the drainage pipe from the kidney to the bladder. Most ureteral stones can be treated by extracorporeal lithotripsy, while for some ureteral stones, they can be treated by non-surgical treatment. In summary, a total of 5 conditions are included as follows: 1. Most domestic opinions believe that the diameter of stones should be <0.6cm or so for drug treatment; 2. Pure uric acid stones or cystine stones; 3. Smooth surface of stones, no obvious impaction or obstruction, staying in the local area for less than 2 weeks; 4. No obstruction in the ureter below the stones; 5. After percutaneous nephrolithotomy, ureteroscopy lithotripsy and extracorporeal shock wave lithotripsy adjuvant therapy. In addition to the above, ureteral stones should be considered for surgical or lithotripsy treatment to avoid long-term stone impaction, resulting in hydronephrosis and impaired renal function.