Laser kidney stone crushing is painless. At present, the clinical treatment of urinary stones basically adopts minimally invasive surgical methods, such as cystoscopy, ureteroscopy, rigidoscopy, ureteroscopy, soft ureteroscopy and percutaneous nephrological procedure through the natural lumen of the human body. The stones are broken up by a laser, allowing them to be excreted through the urine or removed directly during the operation. Minimally invasive surgery also requires anesthesia, with most patients requiring general anesthesia and a very small number taking semi-anesthesia or lumbar anesthesia. The patient is asleep during the surgery and does not feel anything during the whole procedure. After the surgery, the patient returns to the ward with only slight discomfort and almost no pain after waking up from the anesthesia.