Hematuria (hee-ma-TUR-ee-uh) is when there's blood in the urine (pee). Blood in the urine often comes from somewhere in the urinary tract, which includes the kidneys, bladder, ureters (tube-like structures that connect the kidneys to the bladder), and the urethra (the tube that carries urine from the bladder out of the body).
The blood may make the pee look pink, red, or tea-colored. Other times it looks normal, and blood is only seen when a urine sample is viewed under a microscope. This is called "microscopic hematuria."
Tests can help the health care provider find the cause of the hematuria.
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What causes hematuria? Common causes include urinary tract infections (UTIs), kidney stones, irritation of the urethra, injuries, and vigorous exercise. Less commonly, it can happen because of kidney disease, sickle cell disease, blood clotting disorders, and some types of medicine. Sometimes hematuria happens with no clear cause or underlying problem.
What tests are done for hematuria? To look for the cause of the hematuria, the health care provider may order urine tests, blood tests, an ultrasound, a CT scan, or other tests.