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My neutered cat pees outside the litter box. Is it behavioral?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 3 years and 6 months old

My cat Oliver is neutered but he still pees all over the house an it's not a bladder infection its something in his head is there something we can do?

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on February 8th, 2019

The medical reasons a cat will urinate outside the box include a bladder infection, bladder stones, a mass in the bladder, urine crystals and idiopathic cystitis. All of these conditions are painful and this causes the cat to not use the litter box. Most of these cats will need a urinanalysis, urine culture and ultrasound of the bladder to rule out all causes. Check with your veterinarian what additional diagnostics need to be done. Also make sure you are cleaning the litter box every day. Cats can have pretty specific desires for a litter box. If you have questions about these, please post again. Some cats will have behavioral issues and most of them respond to kitty Prozac. This is generally a life long medication. It comes in tablets or can be compounded to a liquid for most pets. Sometimes a special diet can also help. I recommend a diet made by Royal Canin called Urinary + Calm. This diet helps with cats prone to infections or cystitis. It also effects the serotonin levels in the brain and many cats do very well on this diet. I hope this is helpful and please feel free to post any additional questions!

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