Kidney Bruise

Signs and symptoms

Symptoms of a bruised kidney include:

• Blood in the urine.

• Abdominal pain.

• Pain in the area between your hip and ribs (flank pain) or in your back.

• Bruising, swelling, or seatbelt marks in the area of your kidney, low back, or abdomen.

Home care

If you've had a bruise to your kidney, follow these tips:

• Drink lots of fluid. This means at least 8 to 10 glasses of water a day.

• Rest. Don't lift heavy objects or do strenuous activity for the next few days.

• You may use over-the-counter medicine to control pain, unless your doctor prescribed something else. Talk with your doctor before using acetaminophen or nonsteroidal anti-inflammatory drugs, such as naproxen or ibuprofen, if you have chronic liver or kidney disease or are taking blood thinners. Also talk with your doctor if you've ever had a stomach ulcer or gastrointestinal bleeding. Children and teens should not take aspirin unless their doctor says it is safe. Aspirin can put them at risk for Reye syndrome, a rare but serious condition.

Follow-up care

Follow up with your doctor if you still have blood in your urine after 2 days (48 hours).

Call 911

Call 911 if you:

• Have fainting, lightheadedness, dizziness, weakness, or a loss of consciousness.

• Have a rapid heart rate.

• Have heavy bleeding.

• Have severe belly (abdominal) pain or swelling.

• Have severe back pain.

• Have trouble breathing.

• Have a loss of feeling or weakness in your legs.

• Are unable to hold your urine (incontinence).

When to get medical advice

Contact your doctor right away if you:

• Have pain in your back or belly that gets worse.

• Have repeated vomiting.

• Notice larger amounts of blood in your urine.

• Pass blood clots in your urine.

• Cannot pass urine.

• Have a fever of 100.4°F (38ºC) or higher, or as advised by your doctor.