The most common symptoms are blood in the urine, decreased urination, and pain. Preventing permanent damage to the urinary tract and even death may depend on prompt diagnosis and treatment. Kidney Injuries Blunt force is the usual cause of injury to the kidneys, occurring from motor vehicle accidents, falls, or sports injuries. Penetrating kidney injuries can result from gunshot or stab wounds.
Damage varies widely.
Minor injuries can result in small amounts of blood in the urine detectable only by microscopic examination, whereas major injuries are more likely to result in visible blood in the urine. Occasionally, more extensive imaging studies may be necessary. Treatment begins with steps to control blood loss and prevent shock. Fluids are given intravenously to normalize blood pressure and stimulate urine production. When necessary, the appropriate x-ray study can be used to characterize the injury.