If a kidney stone is discharged into the lower part of the ureter, it is recommended to continue the stone removal treatment until the stone falls into the bladder. After the stones in the ureter enter the bladder, most of them can be eliminated through urination. Very few stones may stay in the urethra for a short period of time, and then they need to be treated by further stone removal or urethroscopic stone extraction. Generally, in order to remove a kidney stone from the body, it must go through a process of entering the ureter, then the bladder, then the urethra, and finally out of the body. During the process of stone removal, there may be symptoms of transient or intermittent back pain or abdominal pain, and the symptoms may also change during the process of stone location change, for example, from early back pain to abdominal pain, from abdominal pain to urinary frequency, urinary urgency or lower abdominal pain, or further to difficult urination, urinary effort or bleeding in urination. It is recommended to continue to drink more water, be more active and urinate more, and to review the process of stone discharging dynamically at the hospital regularly, and even to assist extracorporeal shock wave lithotripsy or medication to promote stone discharging as soon as possible.