What is Hematuria?

During routine visits to your health care provider, you are often asked to give a urine sample for testing. Many tests are done routinely, like checking for sugar (diabetes), bacteria (infection) and blood. Blood in the urine that you do not see is called "microscopic hematuria." This blood is only visible under a microscope. There are many causes and most are not serious, but may call for care by your health care provider.