Blood in Urine
En Español (Spanish Version)

Definition
Blood in the urine is also called hematuria. Normally, urine does not contain blood.

There are two kinds of hematuria:

  • Microscopic hematuria—Urine contains a small amount of blood, which is not visible to the naked eye
  • Gross hematuria—Urine is visibly discolored by blood, appearing red or tea-colored
Causes
In some cases, the cause of hematuria is never found. The list of known causes is lengthy. Some more common causes include:

Risk Factors
Risk factors include:

  • Smoking
  • Medications such as certain antibiotics and pain medications
  • Recent upper respiratory tract infection
  • Family history of kidney problems
Kidney Stones Can Cause Microscopic Hematuria

Copyright © Nucleus Medical Media, Inc.

Symptoms
In some cases, there may not be additional symptoms.

But, if you have an underlying condition, you may have other symptoms. For example, kidney stones can cause blood in the urine, along with pain in the side, abdomen, or groin.

When Should I Call My Doctor?
Call your doctor any time you notice blood in your urine.

Diagnosis
Your doctor will ask about your symptoms and medical history. A physical exam will be done. You may be referred to a neprhologist who specializes in kidney disease or a urologist who specializes in the urinary system.

Your doctor may need to test your bodily fluids. This can be done with:

  • Urine tests
  • Blood tests
Your doctor may need to view your bodily structures. This can be done with:

Treatment
Treatment will depend on the cause of hematuria. Some causes of hematuria require no treatment or will resolve on their own. Other causes will respond to medication. For example, treating a urinary tract infection with antibiotics will stop the hematuria. Still, other causes may require surgery, such as the removal of a tumor or treatment for prostate cancer .

Prevention
Treating the underlying condition that causes hematuria may help prevent it from occurring.




RESOURCES:
American Academy of Family Physicians

National Kidney Foundation

CANADIAN RESOURCES:

The Kidney Foundation of Canada

References:
Hematuria in children. National Kidney Foundation website. Available at: http://www.kidney.org/atoz/content/hematuria.cfm . Accessed August 22, 2013.

Hematuria in adults. EBSCO DynaMed website. Available at: http://www.dynamicmedical.com/dynamed.nsf?opendatabase . Updated October 9, 2012. Accessed August 22, 2013.

Hematuria in children. EBSCO DynaMed website. Available at: http://www.dynamicmedical.com/dynamed.nsf?opendatabase . Updated July 22, 2013. Accessed August 22, 2013.

Microscopic hematuria. Am Fam Physician. 1999 Sep 15;60(4):1154. Available at: http://www.aafp.org/afp/990915ap/990915b.html . Accessed August 22, 2013.

Urination problems. American Academy of Family Physicians' Family Doctor.org website. Available at: http://familydoctor.org/familydoctor/en/health-tools/search-by-symptom/urination-problems.html . Accessed August 22, 2013.

Last Reviewed September 2013



Health Information Library content is provided by EBSCO Publishing, fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.

 

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

 

To send comments or feedback to EBSCO's Editorial Team regarding the content please e-mail healthlibrarysupport@ebscohost.com.