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Blood in Urine (Hematuria)

Blood in your urine is called hematuria. Most of the time, the cause is not serious. But you should never ignore blood in the urine. Your healthcare provider can evaluate you to find the cause of the bleeding and treat it, if needed.

Types of hematuria

  • Gross hematuria. This means that the blood can be seen by the naked eye. The urine may look pinkish, brownish, or bright red.

  • Microscopic hematuria. This means that the urine is clear, but blood cells can be seen when urine is looked at under a microscope or tested in a lab.

Both types of hematuria can have the same causes. Neither one is more serious than the other. With either type, you may not have any other symptoms at all. Or you may have other symptoms such as:

  • Pain, pressure, or burning when you urinate

  • Belly pain

  • Back pain

No matter how much blood is found, the cause of the bleeding needs to be identified.

What causes hematuria?

Causes of hematuria vary. They include things such as:

  • Injury

  • Strenuous exercise

  • Infection of the bladder, kidney, or prostate

  • Menstruation

Other reasons people may have blood in their urine are more serious. They include:

  • Blood-clotting disorders

  • Bladder or kidney cancer

  • Sickle cell disease

  • Inflammation of the kidney, urethra, bladder, or prostate

Many treatments are available for blood in the urine, depending on the cause.

Diagnosing hematuria

Your healthcare provider will first confirm that blood is in your urine. He or she will also take your health history and give you a physical exam. Then other tests are done to find exactly where the blood is coming from and why. Your provider will decide which tests will best figure out the cause of your hematuria. These are some common tests that may be done:

  • Lab tests (may include urinalysis, a urine culture, a urine cytology, and blood tests)

  • Cystoscopy

  • CT or CT urography

  • MRI or MR urography

  • Ultrasound of the kidney

  • Kidney biopsy

Online Medical Reviewer: Donna Freeborn PhD CNM FNP
Online Medical Reviewer: Marc Greenstein MD
Online Medical Reviewer: Raymond Kent Turley BSN MSN RN
Date Last Reviewed: 6/1/2019
© 2000-2019 The StayWell Company, LLC. 800 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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