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Why is my dog's pee bloody? What are common causes of blood in urine?

Updated on September 23rd, 2025

Pet's info: Dog | Doberman Pinscher | Female | unspayed | 4 months and 22 days old | 41.8 lbs

Just few minutes ago I was applying a treatment on my dogs’ neck for ticks/fleas, my female dog suffered an infection and both my dogs had skin allergies(which I treated by injections), however before I leave I found this( see the photos) is that blood? And what could cause it in their urine? Yesterday I also gave me a deworm( my vet told me so before I can vaccinate them). Thank you in advance!

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on July 4th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

Unfortunately due to the color of your tile I can't tell 100% if that is blood. You will need to collect a urine sample and have your Vet check it. Causes of blood in the urine are a urinary tract infection, crystals in the urine or bladder stones. It isn't from the topical flea treatment or the dewormer.

I wish you the best!
Vote Icon1Pet Parents found this answer helpful

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