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Why is my house-trained dog peeing on her bed with fishy urine?

Updated on September 23rd, 2025

I have a 4 year old bully female and here the past three days she has been using the bathroom on her bed which let me mind you we have had her for 3 years now and this has never happened . She is fully house trained and uses the bathroom outisde. Well i noticed a smell from this pee in my bedroom and on her bed such a foul/fish kind of smell and i was wondering what might that be ? and should i take her to the vet? I recently got a male back in November could this have something to do with him ?

1 Answer

Most Helpful Answer

Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on September 3rd, 2017

In general any changes in urination should be evaluated by your vet. Specifically for your girl, we commonly associate a strong fish odor to the urine with certain bacterial urinary tract infections, so I would have your vet check a urine sample on her to assess for a urinary tract infection or any other abnormalities in her urine.
I hope that helps. Thanks for using Petco Pet Education Center, formerly Petcoach.
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