Cystogram shows source of blood in bladder!?

Blood in bladder: A cystogram may show the cause of blood being present in the urine. Additional test may be required such as cystoscopy - looking into the bladder with a small scope, ct scan of the kidneys and bladder, cultures, specialized test for bladder cancer, etc. Some patient will have negative workups and just have a microscopic amount of blood noted on urinalysis when tested.