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Why is my unspayed female dog peeing blood, possibly bladder stones?

Updated On September 23rd, 2025

Pet's info: Dog | Pomeranian | Female | unspayed | 9 years and 11 months old | 6.4 lbs

I have a female pomeranian that hasn’t been spayed. She is 8 years old and a bit overweight at 2.9kg (our vet advises that her ideal weight is 2.5kg). She has recently been having small amounts of blood in her urine. She’s done 4 ultrasounds with 4 different doctors and only 1 of them has said that she has bladder stones, and the others said nothing was wrong. She urinates frequently in small amounts and recently peed a deep red pee that smells like blood. Does anyone know what’s wrong?

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3 Answers

Most Helpful Answer

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Answered By Stephanie Echols, DVM

Veterinarian

Published on January 29th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! If she has bladder stones, she needs to have them removed because they will irritate the lining of the bladder causing bleeding and other complications. Once the stones are removed, they can have them tested to determine what kind of stones they are and can put Puffy on a special diet to help prevent them from forming again. I would also recommend having her spayed at the same time to prevent a life-threatening infection that can occur within the uterus causing her to need emergency surgery. There is a chance the blood in the urine is coming from her uterus but if a vet saw stones in the bladder, that is more likely. Good luck and kisses to Puffy!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on December 9th, 2016

    Unfortunately, it could be that Olive has bladder stones again or a UTI. Certain dogs can be prone to bladder stones, and experience them multiple times. I would take her back into the vet first thing in the morning for an exam. The vet can do a physical exam, routine blood tests, and a urinalysis to see if she has bladder stones again or a UTI, and can treat accordingly.

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    Answered By Sara Farmer, DVM

    Veterinarian

    Published on February 8th, 2019

    She may still have some bladder inflammation that is causing her symptoms and it is not necessarily unusual to see these symptoms post-op. I would let your vet know that this is happening - they might want to check her bladder or urine or prescribe an anti-inflammatory to help.

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