The success rate of extracorporeal lithotripsy is affected by a number of factors such as the size and location of the stone, the time of discovery, and the patient’s own condition, so it is impossible to accurately assess whether lithotripsy can be successful at one time. 1. Size: Extracorporeal lithotripsy is usually applied to kidney stones less than 2 centimeters and ureteral stones less than 1 centimeter, the larger the stone, the lower the possibility of successful lithotripsy. 2. Location: Generally speaking, stones in the upper and end ureter are easy to locate and have a higher success rate of lithotripsy, while stones in the middle ureter are often difficult to locate and have a lower success rate of lithotripsy. 3. Time of discovery: the shorter the time of discovery, the more successful the lithotripsy is because the stone is not obviously adherent to the surrounding tissues. If the time of discovery is long, the stone may have been adherent to the surrounding tissues or wrapped in polyps, which leads to a low success rate of lithotripsy. 4. The patient’s own condition: if the patient is obese, the lithotripsy success rate will be low because the lithotripsy distance is too long. To summarize, the success rate of extracorporeal lithotripsy is affected by a variety of factors, and the size and location of the stone is different, different treatment methods, it is recommended that patients with stones go to regular hospitals in a timely manner, in order to strive for early recovery.