Stents are typically placed to prevent or relieve ureteral obstruction caused by intrinsic or extrinsic etiologies. Stent design and biomaterials have improved in recent years from the first described double-J stent in 1978. The indications for placement of a ureteral stent include obstructing ureteral calculi, ureteral strictures, congenital anomalies such as ureteropelvic junction obstruction, retroperitoneal tumor or fibrosis, trauma and iatrogenic injury, and postoperative drainage.