(Blood in the Urine—Child)
Pronounced: he-mah-CHUR-e-ahEn Español (Spanish Version)
Hematuria means blood in the urine. Normally, urine does not contain any blood. There are two kinds of hematuria:
- Microscopic hematuria—Urine contains a very small amount of blood. It cannot be seen with the naked eye.
- Gross hematuria—Urine appears red or tea-colored.
The Urinary Tract
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Hematuria can be caused by many conditions, such as:
- Vigorous exercise
- Injury to the abdomen, pelvis, or internal organs of the urinary tract
- Conditions that affect the urinary tract (eg, infection, vesicoureteral reflux , blockage or abnormalities, tumors)
- Cancer (eg, kidney or bladder cancer)
- Kidney disease
- Kidney stones
- Bleeding disorders (eg, hemophilia )
- Certain congenital diseases (eg, polycystic kidneys )
- Certain medicines
Sometimes the exact cause is not found.
Risk factors include:
Hematuria does not always cause symptoms. It may be a sign of an underlying condition which can cause symptoms. For example, if a urinary tract infection is the cause, your child may have to urinate often. She may also have a burning feeling when she urinates.
The doctor will ask about your child’s symptoms and medical history. A physical exam will be done. Tests may include:
- Urine tests—tests to confirm the presence of blood and look for protein, bacteria, or cancer cells in the urine
- Blood tests—tests to check how well the kidneys are functioning and to look for conditions that cause hematuria
- X-ray —a test that uses radiation to take a picture of structures inside the body
- Ultrasound —a test that uses sound waves to create images of the kidneys and urinary tract
- CT scan —a type of x-ray that uses a computer to create images of the kidneys and urinary tract
- MRI scan —a test that uses powerful magnets and radio waves to create images of the kidneys and urinary tract
- Cystoscopy —a thin tube inserted through the urethra and into the bladder to look at its lining
- Kidney biopsy (done in rare cases)—a small sample of kidney tissue is removed for testing
Treatment will depend on the cause. Some causes do not require treatment. Other causes can be treated with medicine. For example, a urinary tract infection is treated with antibiotics. In some cases, like a blockage in the urinary tract, surgery may be needed.
American Academy of Family Physicians
National Kidney Foundation
BC Health Guide
The Kidney Foundation of Canada
Children’s Hospital Boston. Hematuria. Children’s Hospital Boston website. Available at: http://www.childrenshospital.org/az/Site1000/mainpageS1000P0.html . Accessed July 1, 2010.
DynaMed Editorial Team. Hematuria in children. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php . Updated June 17, 2010. Accessed July 1, 2010.
National Kidney and Urologic Diseases Information Clearinghouse. Hematuria (blood in the urine). National Kidney and Urologic Diseases Information Clearinghouse website. Available at: http://kidney.niddk.nih.gov/kudiseases/pubs/hematuria/ . Updated February 2007. Accessed July 1, 2010.
Shannon D. Hematuria. EBSCO Health Library website. Available at: http://www.ebscohost.com/thisTopic.php?marketID=15topicID=81 . Updated September 30, 2009. Accessed July 1, 2010.
Last reviewed June 2011 by Kari Kassir, MD
Last updated Updated: 6/6/2011
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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