The time taken for stones to pass after kidney stone lithotripsy varies from person to person, ranging from one day to one month. Extracorporeal shock wave lithotripsy uses X-ray or ultrasound to locate the stone, and then uses high-energy shock waves to focus on the stone, causing it to fracture until it is crushed into fine sand and excreted with urine. The discharge time of stones depends on the effectiveness of extracorporeal lithotripsy. If the effect of extracorporeal lithotripsy is good and can smash the kidney stones, the discharge time will be faster, which may take a few days to a week. If the effect of extracorporeal lithotripsy is poor and the kidney stones are not crushed, the kidney stones will take longer to be discharged and the residual stones will be larger and need to be treated by extracorporeal lithotripsy again. The difficulty of stone removal treatment for kidney stones mainly depends on the size, location and composition and hardness of the stones, the smaller the stones are the greater the probability of discharge, and the probability of stone removal from the upper calyces of the kidney is higher than that of the lower calyces. During stone removal, it is necessary to drink more water, keep the daily urine volume above 2000 ml, and appropriate exercise can effectively promote the discharge of stones. In the process of stone removal treatment, Chinese herbal medicine is a common choice, which can effectively increase the urine volume and promote the discharge of stones.