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Why is my cat pooping liquid outside the litter box after vet?

Updated on September 23rd, 2025

Three year old cat started pooping outside the litter box... Liquid and runny. Have already taken to vet. Fecal test fine ... She was doing okay on royal cabin digestive now not working. Trying to tell her No No. She will puposedly swlqat on carpet I yell at her to the litter box. Trying imodium AD and keeping her in litter box room. Only room without carpet. Any other advice?

1 Answer

Most Helpful Answer

Dr. Elizabeth

Answered By Dr. Elizabeth

Veterinarian

Published on December 30th, 2019

I hate to hear this is happening. Unfortunately, your cat needs to be examined by the veterinarian again. When pets don't respond to treatment as expected, it generally means the real cause of illness has not been identified. Likely she needs further diagnostics and treatment. When cats stop using the box, it's often because it hurts to have the bowel movement and they think the litter box is related to the pain.
Unless your vet told you to give the imodium, I recommend to stop the medication. It can have some bad side effects:
https://www.petcoach.co/article/7-human-medications-that-are-dangerous-for-your-pet/

Keep your kitty in an area that is easy to clean and keep her calm and quite. Making her more stressed will not help and may create a negative association. Once the diarrhea and GI pain is resolved, she will likely start using the box again.
I hope this helps and that she starts feeling better quickly.
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