Kidney stone surgery in vivo j-tube, usually placed in the lower urethra for a month, after a month, in cystoscopy to remove the double J tube. Percutaneous nephrolithotomy ballistic lithotripsy, transurethral soft-scope ballistic lithotripsy and other surgeries, after surgery need to be placed double j-tube, because after lithotripsy, a large number of stone debris can not be discharged from the body in time, which is easy to cause the stones to build up together again and form a new obstruction. When the j-tube is placed, the ureter can be well dilated, and the stones can be discharged smoothly, and it can also prevent postoperative adhesions caused by intraoperative mucosal damage and avoid urethral stricture. In addition, after kidney stone surgery, avoid strenuous exercise and drink a lot of water to increase urination. To summarize, patients should follow up regularly after kidney stone surgery, and if there is any discomfort, it is recommended to go to the hospital to avoid delaying the condition.