[Complications and limitations of pelvic ureter endoscopy]

We report complications and general limits of low ureteroscopy in relation to the use of ureteroscope in a normal or pathologic urinary tract and during rigid ureteroscopy for diagnostic purpose or instrumental procedures. It is plain that limits are represented by anatomic or pathologic urinary tract alterations whereas complications only depend on instrumental procedures. Complications are less frequent in the pelvic ureter and seem to give few negative results.