Anuric renal failure after same-session bilateral atraumatic flexible ureteroscopy.

We report the first known case of anuric renal failure after same-session bilateral atraumatic flexible ureteroscopy for renal calculi. Although, there is no consensus about stenting patients who undergo same-session bilateral ureteroscopy due to the lack of prospective randomized studies; strong consideration should be given to stenting the ureter at least one side to avoid this complication.