Ureteral stent tube one end in the renal pelvis, one end stops into the bladder, extraction needs to be operated under the operation of a professional urologist, with a cystoscope through the urethra, the whole process should be strictly aseptic operation. The patient lies flat on the examination bed, take the lithotomy position, strict disinfection, lay a sterile towel sheet from the external urethral orifice into the cystoscope, into the bladder, into the bladder filled with sterile saline, filling the bladder, observation of the situation in the bladder, looking for the opening of the ureter, you can see the tail end of the ureteral stent tube. A foreign body forceps is implanted from the cystoscopic sheath operating channel, the ureteral stent tube is clamped and withdrawn from the cystoscope, and the ureteral stent tube is pulled out of the body together. After the examination, the patient should be advised to drink plenty of water and urinate regularly.