The stents taken for kidney stones generally refer to ureteral stents, or double J-tubes. Ureteral stents are generally taken with a review of the urinary ultrasound, urinary X-rays, and routine urinalysis, depending on the patient’s own condition. Ureteral stents are generally made of polymer material and are surgically placed in the ureter to ensure that urine can be diverted from the kidneys to the bladder. Usually, ureteral stents are removed by urinary ultrasound, urinary X-ray and routine urinalysis. Urinary ultrasound, urinary X-ray can check whether the position of the ureteral stent is shifted or not, whether there are stones left, and the recovery of hydronephrosis, and sometimes urinary CT is also needed. Routine urinalysis can check whether the patient has a urinary tract infection, so as to facilitate the follow-up treatment. The above tests are for reference only, if you need to remove the ureteral stent, it is recommended that you go to a regular hospital for treatment, and the doctor will choose the appropriate tests according to the patient’s specific situation.