What do the results mean?There are a variety of factors that can cause red or white blood cells to be present in the urine. Many are not cause for concern. Small amounts of blood in the urine may be due to certain medicines, intense exercise, sexual activity, or menstruation. If larger amounts of blood are found, your health care provider may request further testing.Increased red blood cells in urine may indicate:A viral infectionInflammation of the kidney or bladderA blood disorderBladder or kidney cancerIncreased white blood cells in urine may indicate:A bacterial urinary tract infection. This is the most common cause of a high white blood cell count in urine.Inflammation of the urinary tract or kidneysTo learn what your results mean, talk to your health care provider.Learn more about laboratory tests, reference ranges, and understanding results.
