You can’t take the stent tube until the stones are expelled. The ureter is relatively narrow, especially the first stenosis right side of the second stenosis and the third stenosis site is prone to stone obstruction, kidney stone surgery after ureteral stenting is conducive to the discharge of small stones, generally need to be put in a period of 1 to 3 months. If the stones are not completely discharged, the stent tube will affect the discharge of stones, resulting in ureteral obstruction, leading to infection, and serious upstream infection. One month after the kidney stone surgery, you need to go to the hospital for rechecking to observe the discharge of stones, if the stones have been discharged, you can remove the stent, if you find that there are still stones or larger stones, you may need to re-operate, which will need to extend the time of stent use. After the stone surgery, it is recommended to drink more water and do more exercise, which is conducive to the discharge of stones, and should follow the doctor’s instructions for regular checkups to observe the discharge of stones, and follow the doctor’s instructions to take the stent.