Blood in Urine
- Microscopic hematuria—Urine contains a very 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.
- Injury to the abdomen, pelvis, or internal organs of the urinary tract
- Vigorous exercise (resolves with rest)
- Urinary tract infection or kidney infections
- Cancer of the prostate , kidney , or bladder
- Kidney disease
- Kidney stones
- Bleeding disorders (eg, hemophilia )
- Certain congenital diseases (eg, polycystic kidneys )
- Radiation of the pelvis (for cancer treatment)
- Certain medications
- Medicines (eg, certain antibiotics and pain medicines)
- Recent upper respiratory tract infection
- Family history of kidney problems
|Kidney Stones Can Cause Microscopic Hematuria|
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When Should I Call My Doctor?
- 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 medical conditions that cause hematuria
American Academy of Family Physicians http://familydoctor.org
National Kidney Foundation http://www.kidney.org
BC Health Guide http://www.bchealthguide.org
The Kidney Foundation of Canada http://www.kidney.ca
Hematuria in children. National Kidney Foundation website. Available at: http://www.kidney.org/atoz/content/hematuria.cfm . Accessed January 10, 2013.
Dambro MR. Griffith’s 5-minute Clinical Consult . 13th ed. Lippincott Williams and Wilkins; 2005.
Hematuria in adults. EBSCO DynaMed website. Available at: http://www.ebsochost.com/dynamed . Updated October 9, 2012. Accessed January 10, 2013.
Hematuria in children. EBSCO DynaMed website. Available at: http://www.ebsochost.com/dynamed . Updated November 20, 2010. Accessed January 10, 2013.
Microscopic hematuria. Am Fam Physician. American Family Physician website. Available at: http://www.aafp.org/afp/990915ap/990915b.html . Accessed January 10. 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 January 10, 2013.
- Reviewer: Adrienne Carmack, MD
- Review Date: 01/2013 -
- Update Date: 01/10/2013 -
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.
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