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Why is my cat peeing on the floor after surgery and anesthesia?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Longhair | Male | unneutered | 3 years and 8 months old | 2.1 lbs

Hi. My cat had surgery today to remove a papilloma from his tongue. He was under anesthesia, needed a catheter, and is now 8 hours post-op with a fentanyl patch in place and is eating and drinking. He keeps urinating all over the floors though and doesn't seem to realize he's doing it. He has tried to go in the litter box a couple times, but was umsuccessful.He did pee on the floor when i noticed something wrong with him--1 day b4 surgery

1 Answer

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on June 4th, 2021

Poor kitty! It takes a good 24 hours for anesthesia to completely wear off, and if he's on heavy pain meds that can also affect his ability to get around and know when he needs to go potty. I would keep him in a sort of recovery area nearby his litter box that is easy to clean as he is likely not intentionally having the accidents. If after 24 hours he is still seeming to be very disoriented, can't hold his urine properly at all, or new symptoms are appearing, I'd let your vet know ASAP to make sure he isn't having an adverse reaction to the pain meds or anesthesia.

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