Generally speaking, the diameter of ureteral stent is between 4 ~ 10mm, and the length depends on the patient's specific situation, generally between 15 ~ 30cm.
Ureteral stent is a medical device used to support ureter and prevent urine from flowing back to kidney. When the ureter is injured or operated, the doctor will suggest placing a ureteral stent to help restore the normal function of the ureter.