Kidneys filter waste material from the bloodstream and produce urine.
Ureters are the tubes that carry urine from the kidneys to the bladder.
Hospitalization for shock or internal bleeding. Surgery to repair the ureter or remove the kidney, if other treatment fails. Blood in the urine. If your child has severe pain with large amounts of blood in the urine, one or both kidneys may be seriously injured. Require that all automobile passengers buckle their seat belts and shoulder harnesses to minimize internal injury in case of accident.