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My new cat has blood in urine. What causes it and how to treat?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 2 years and 6 months old | 9 lbs

Hi we recently adopted a cat and since then we noticed a random spot of blood here and there. We have 3 other cats and did not know where or who it was coming from. It's the new guy and we think there is blood in the urine. How is this treated and what does it mean. Thank Jackie

2 Answers

Most Helpful Answer

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Answered By Sarah Derksen, DVM

Veterinarian

Published on June 3rd, 2018

There are 3 main reasons why cats urine may have blood in it.   A urinary tract infection, bladder or kidney stones, or feline lower urinary tract disease (non-bacterial inflammatuon of the bladder). New stresses are a big culprit.  I would make an appointment to get him seen.  They will perform a full exam, a urinalysis, lab work, and a bladder xray.  In addition, make sure you have enough litter boxes. 1 per cat PLUS 1.  Make sure they  are cleaned daily,  and away from any loud or scary noises.  If his tests are all normal, you add the litter boxes, you decrease stress, and clean often. If there is no UTI, but blood, it is most likely the feline lower urinary tract disease. Your veterinarian can then discuss treatment with a diet change, and medications. Good luck. 

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Other Answers

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on July 16th, 2019

    This could be due to a UTI or bladder stones. If she appears otherwise healthy and happy, eats and drinks plenty, you can wait until tomorrow morning. If she appears lethargic, ill or distressed, or if the urine appears very bloody, then she should be seen by a vet ASAP. Feed her wet/canned food, add water to it, and make sure she drinks a lot of water to help flush the bladder. Best of luck.

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