Hematuria

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Hematuria is the presence of red blood cells (RBCs) in the urine. In microscopic hematuria, the urine appears normal to the naked eye, but examination with a microscope shows a high number of RBCs. Gross hematuria can be seen with the naked eye. The urine will look red in color or brown-tinged.


Contents

What causes hematuria?

Several conditions can cause hematuria, most of them not serious. For example, exercise may cause hematuria that goes away in 24 hours. Many people have hematuria without any other related problems. Often no specific cause can be found. But because hematuria may be the result of a tumor or other serious problem, a doctor should be consulted.


How is hematuria diagnosed?

To find the cause of hematuria, or to rule out certain causes, the doctor may order a series of tests, including urinalysis, blood tests, kidney imaging studies, and cystoscopic examination.

  • Urinalysis is the examination of urine for various cells and chemicals. In addition to finding RBCs, the doctor may find white blood cells that may signal a urinary tract infection or casts, which are groups of cells molded together in the shape of the kidneys' tiny filtering tubes, that may signify kidney disease. Excessive protein in the urine also signals kidney disease.
  • Blood tests may reveal kidney disease if the blood contains high levels of wastes that the kidneys are supposed to remove.
  • Kidney imaging studies include ultrasound, computerized tomography (CT) scan, or intravenous pyelogram (IVP). An IVP is an x ray of the urinary tract. Imaging studies may reveal a tumor, a kidney or bladder stone, an enlarged prostate, or other blockage to the normal flow of urine.
  • A cystoscope can be used to take pictures of the inside of the bladder. It has a tiny camera at the end of a thin tube, which is inserted through the urethra. A cystoscope may provide a better view of a tumor or bladder stone than can be seen in an IVP.

How is hematuria treated?

Treatment for hematuria depends on the cause. If no serious condition is causing the hematuria, no treatment is necessary.


For More Information

American Kidney Fund
6110 Executive Boulevard, Suite 1010
Rockville, MD 20852
Phone: 1–800–638–8299 or 301–881–3052
Email: helpline@kidneyfund.org
Internet: www.kidneyfund.org

National Kidney Foundation, Inc.
30 East 33rd Street
New York, NY 10016
Phone: 1–800–622–9010 or 212–889–2210
Internet: www.kidney.org

Additional Information About Hematuria

The National Kidney and Urologic Diseases Information Clearinghouse collects resource information about kidney and urologic diseases for the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Reference Collection. This database provides titles, abstracts, and availability information for health information and health education resources. The NIDDK Reference Collection is a service of the National Institutes of Health.

You may view the results of the automatic search on hematuria.

If you wish to perform your own search of the database, you may access and search the NIDDK Reference Collection database online.



National Kidney and Urologic Diseases Information Clearinghouse

3 Information Way
Bethesda, MD 20892–3580
Phone: 1–800–891–5390
Fax: 703–738–4929
Email: [/about/contact.htm nkudic@info.niddk.nih.gov]
Internet: www.kidney.niddk.nih.gov/

The National Kidney and Urologic Diseases Information Clearinghouse (NKUDIC) is a service of the [[National Institute of Diabetes and Digestive and Kidney Diseases]] (NIDDK). The NIDDK is part of the National Institutes of Health of the U.S. Department of Health and Human Services. Established in 1987, the Clearinghouse provides information about diseases of the kidneys and urologic system to people with kidney and urologic disorders and to their families, health care professionals, and the public. The NKUDIC answers inquiries, develops and distributes publications, and works closely with professional and patient organizations and Government agencies to coordinate resources about kidney and urologic diseases.

Publications produced by the Clearinghouse are carefully reviewed by both NIDDK scientists and outside experts.

This publication is not copyrighted. The Clearinghouse encourages users of this publication to duplicate and distribute as many copies as desired.

Medpedia-logo.gif The basis of this article is contributed from Medpedia.com These articles are licensed under the GNU Free Documentation License It may have since been edited beyond all recognition. But we thank Medpedia for allowing its use.
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