What is a kidney injury?
A person with a kidney injury has damage to the kidney, due to an injury to the back or abdomen. Bruises and small lacerations to the kidney usually heal without complications. Severe injuries can permanently damage the kidney, or cause the kidney to fail.

What are the symptoms of a kidney injury?
Symptoms of a kidney injury may include abdominal bruise, abdominal pain, abdominal swelling, red or pink urine, breathing difficulty, flank pain, back pain, nausea, and vomiting.

How does the doctor treat a kidney injury?
The treatment for a kidney injury depends on the type and severity of injury. Minor bruises and lacerations to the kidney may heal without surgery. However, severe injuries require surgery, in order to repair damaged tissue and blood vessels.