
Bladder cancer usually presents with painless blood in the urine. The blood may be visible to the patient, or it may be microscopic and only picked up when the urine is examined under a microscope. Sometimes, bladder cancer can also cause irritative voiding symptoms, including urinary urgency and frequency. This means having the urge to urinate even with an empty bladder, or urinating more often than usual. All of these symptoms could be related to non-cancerous conditions as well, so it is important to speak to your doctor if you experience any of these symptoms.