During laser lithotripsy, the patient is under anesthesia, usually under general anesthesia, and the patient is not conscious, so during the whole procedure and anesthesia, the patient does not have any pain, but after the anesthesia wakes up, there may be slight back pain and pain in the urethra. This is because various minimally invasive instruments enter the kidney and cause congestion and edema in the mucous membrane of the renal pelvis, so there may be a short period of pain after the operation. A catheter will be placed after the operation, so there will be a stinging sensation in the urethra, which is relatively obvious within 24 hours after the operation, and after 24 hours the patient has tolerated it and will hardly feel any discomfort. Laser surgery for kidney stones is a minimally invasive procedure that does not involve any incisions on the body surface, so there is no pain associated with the original body incisions of traditional surgery. There is also a procedure called percutaneous nephrolithotomy Holmium laser lithotripsy for kidney stones, which requires a channel in the lower back with an opening of about 1 cm, and there may be a slight pain in the skin, but this pain is relatively mild and can be fully tolerated by the patient.