Ureteroscopy is an examination of the upper urinary tract, usually performed with a ureteroscope that is passed through the urethra and the bladder, and then directly into the ureter; usually the lower 2/3 of the ureter is accessible by this procedure. The procedure is useful in the diagnosis and treatment of disorders such as kidney stones. Smaller stones in the bladder or lower ureter can be removed in one piece, while bigger ones are usually broken before removal during ureteroscopy.
