The main reaction to kidney stone evacuation is low back pain, and in the process of evacuation the stone can enter into the ureter, which can then cause ureteral obstruction. The obstruction may be complete or partial, and part of the urine produced by the kidneys will accumulate here in the kidneys during the process of elimination; the other part will be discharged into the bladder, and the pressure in the patient’s kidneys will increase, which will result in the symptom of low back pain. Therefore, if the patient suddenly develops low back pain, it often suggests that the stone has entered an obstruction site and is in the process of discharging. At this time you need to go to the hospital for symptomatic pain management, patients need to drink more water, more exercise, more jumping, through the urine flushing and certain gravity to promote the discharge of stones. In the process of stone shooting, the location of the pain will change, such as kidney stones into the upper ureter, manifested as lumbar pain, accompanied by epigastric pain, accompanied by nausea, vomiting. However, if the stone continues to drain downward and enters the lower or end of the ureter, the patient will gradually have lower abdominal pain, accompanied by frequent urination, urinary urgency or accompanied by a constant feeling of wanting to defecate. If the stone is completely eliminated from the bladder, the above symptoms are immediately relieved or disappear.