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Why is my cat still having bloody urine and litter box issues?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 1 year and 10 months old | 13 lbs

Have a 2 year old cat with urinary discomfort and blood in urine. Has gone thru 3 courses of antibiotics. Urine culture was negative. Blood work unremarkable. Xray was negative. Currently on Elavil 10mg daily and Buprenex 0.1mg TID. Still experiencing urinary discomfort. Frequently dragging butt on floor, spending excessive time in litter box (hour), and frequently cleaning privates. No change in food and water intake.

1 Answer

Most Helpful Answer

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Answered By Lauren Jones VMD

Veterinarian

Published on May 27th, 2018

Poor Calliope! It sounds as though she has been through quite a bit recently. As a female cat, it would be highly unusual for her to develop a urinary tract obstruction, whereas it would be more expected in a male cat showing similar signs. As I'm sure you're aware, common causes of blood in the urine in female cats include urinary tract infection and bladder stones. In Calliope's case, a UTI has been ruled out and the chance of having bladder stones is quite low. However, there are a few types of bladder stones that are not visible on x-rays, but these are uncommon. At this point, it may be worth discussing an ultrasound of her bladder with your vet, as the types of bladder stones not typically visible on x-ray can often be seen on ultrasound. Since she is dragging her hind end, it also may be worth asking her vet to check her anal glands to see if these are causing additional irritation. A consultation with a specialist in veterinary internal medicine could also be considered. I hope this helps and that all goes well!

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