What Does Blood In My Cats Urine Mean?

Hello there. I would be concerned seeing blood in your girl's urine. This can be a symptom of bladder infections, bladder stones, urinary tract infections, etc. I would have her seen by your Veterinarian and have him/her run a urinalysis to see if there is in fact an infection or something else going on. It is a test that can usually be run in-house while you wait for the results and they can send you home with medications that day if they find that she needs them. I would not take blood in her urine lightly. Please let me know if there is anything else I can help you with and let me know how everything works out!! Have a Happy, Healthy, and Blessed 2009!!
Sincerely,
Jennifer - Veterinary Technician, Certified VT

Bloody urine can be caused by a urinary tract infection, bladder stones, kidney disease/infection, or feline lower urinary tract infection (also called sterile/non-infectious cystitis).  Your cat needs to be examined by a veterinarian.  The first diagnostic step is to have a urinalysis run.  Blood work and x-rays or ultrasound may be needed.

Cats are rather prone to forming bladder stones, she needs to see a vet as these could block her urethra which would be a medical emergency. She may need a special diet, which reduces the chances of her forming more.