Fortunately, many cats experiencing blood in their urine have signs that resolve quickly with relatively simple treatments. The two major causes of blood in a cat’s urine are cystitis and feline lower urinary tract disorder or FLUTD. What is hematuria? Blood in the urine is called hematuria.

Blood in cat urine is most often caused by issues in the lower urinary tract (from the bladder to the urethra), but it may also stem from the kidneys and ureters. The urethra is the tube that connects your cat’s bladder to the outside world, therefore anything that goes wrong with the bladder usually affects the urethra too.