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Hematuria is blood in the urine. Two types of blood in the urine exist. Blood that can be seen visibly in the urine is called gross hematuria. Blood that cannot be seen in the urine, except when examined with a microscope, is called microscopic hematuria.
Most people with microscopic hematuria do not have symptoms. People with gross hematuria have urine that is pink, red or cola-colored due to the presence of red blood cells. Even a small amount of blood in the urine can cause urine to change color. In some cases, people with gross hematuria do not have other symptoms. However, people with gross hematuria that includes blood clots in the urine may have pain.
Hematuria can be caused by menstruation, vigorous exercise, kidney stones, sexual activity, viral illness, trauma or infection, such as a urinary tract infection (UTI). It can also be caused by bladder, kidney or prostate cancer. 
Almost anyone, including children and teens, can have hematuria. Factors that increase the chance a person will have hematuria include:
  • A family history of kidney disease
  • An enlarged prostate, which typically occurs in men age 50 or older
  • Urinary stone disease
  • A recent bacterial or viral infection
  • Certain medications, including aspirin and other pain relievers, blood thinners and antibiotics
  • Strenuous exercise, such as long-distance running

Hematuria is treated by treating its underlying cause. If no serious condition is causing hematuria, no treatment is needed. 
Start by talking to your provider if you have questions or concerns.

Call to schedule an appointment with Prevea Urology:
Green Bay, Sturgeon Bay and Oconto Falls (920) 436-1359
Sheboygan, Plymouth and Manitowoc (920) 458-6664

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