Your primary doctor may have identified blood in your urine during a test called urinalysis. This test is sometimes performed during general periodic examinations but also may be performed to evaluate a variety of medical conditions. Blood may come from the kidneys, ureters, bladder, or urethra. Causes may result from, but are not limited to, stone, tumor, foreign body, and other medical conditions. The evaluation includes urine culture, urine cytology, CT IVP, and office cystourethroscopy. A negative evaluation is the most common outcome, and there is no standard follow up. Reevaluation can occur every 6-18 months depending on symptoms or recurrence.