During stone removal treatment, you can determine whether urinary stones are discharged by symptoms, urinary routine, ultrasound or CT. The methods to determine the discharge of stones are: 1. The patient should have obvious sensation, pain and find particle-like material discharged in the urine when the stone is discharged. If you see the stone in the urine, and the size of the stone matches the size of the original examination, and you go to the hospital for another examination to confirm that the stone has been discharged. It is best to catch urine in a container every time you urinate in order to detect the discharge of stones and to stop the stone removal treatment in time. When the stone is not discharged, there are symptoms such as hematuria, pain, infection, etc. When these symptoms are relieved or disappeared, it means that the stone has been discharged, and you should go to the hospital to check again to make sure that the stone has been discharged. 3.No red blood cells and white blood cells in the urine, the urine routine examination is basically normal; 4.Undertake ultrasound of the kidney, ureter and bladder, you can clearly find out whether there are still stones in the kidney, ureter and bladder. If the ultrasound is not clear, it is recommended to do CT plain scan of the kidney ureter bladder under the condition of holding urine, which can clearly show whether there are still stones in the kidney, ureter and bladder. The combination of the above symptoms and ancillary tests can provide more clarity as to whether the stones have been completely expelled.