A kidney stone that suddenly stops hurting may have moved or passed out of the body on its own. If the stone is not large and passes through a narrow area during movement or with the flow of urine, the irritation disappears and pain relief occurs. It is also possible that the stone is small and with the urine or changes in position during exercise, the stone is allowed to enter the ureter and bladder and pass out of the body through the urine. For patients who do not have kidney stone pain, it is also recommended to go to the hospital for examination. If the stones have been expelled and are not in the body, no other treatment is needed. However, if the stone is found to have stayed in a fixed or non-obstructive position, the disappearance of pain does not mean that the disease has been cured, and further treatment is still needed at this time.