Nowadays, it is fashionable to say that soft microscopy is used to retrieve stones, even though it is done through the natural lumen, which is indeed less damaging to the kidney, but also has certain risks. The first is the risk of bleeding and the second is the risk of co-infection. The third is the risk of ureteral or pelvic mucosal injury during the procedure, which can cause perforation of the ureteral tract and tearing. The operation in the kidney can also cause some damage to the kidney. At the same time, lithotripsy requires a self-discharge process, which is a long process. Because of the size of the stone and the extent of the stone, sometimes a second-stage surgery is required, which leads to higher costs in the future.