Blood in the urine (hematuria) is one of the symptoms of bladder cancer. It may be gross hematuria (visible to the naked eye) or visible only under a microscope. Other symptoms include frequent urination or pain upon urination. Flank pain is also a symptom of bladder cancer.
These symptoms can appear with a host of illnesses such as urinary tract infections, benign tumors, bladder stones and others in addition to bladder cancer. The diagnostic procedure is designed to identify specific causes and eliminate others.
