How can I stop my unneutered male cat from spraying?

Original Question: My cat is spraying in the closets. He leaves to go outside a lot and then comes home, eats and sprays. I am trying to save enough money to get him neutered but I do not know how to make him stop spraying or how to completely rid the smell. - Milo

Dec 10, 2018

Hi Milo,

Thanks for your question. This issue is as common as it is frustrating.

Whenever our pets are eliminating inappropriately, whether it be urination or defecation, it can be caused by two things: medical reasons or behavioral reasons. So the first thing we have to do is rule out medical problems.

I recommend you see your veterinarian and perform blood work, urine testing and a ‘culture and sensitivity’ to make sure there is no medical issue causing this. Inappropriate urination can be caused by a urinary tract infection, diabetes, renal disease, hyperthyroidism, neurological disease or other ailments that can be found by running diagnostics. If a medical condition is found, then the appropriate treatment can be implemented and the condition may resolve.

I understand from your question that your assumption is that this is due to not being neutered. This can be a possibility. Spraying has a distinct sequence. Cats that are ‘spraying’ due to being intact will raise their tail straight up, back up against a wall and spray urine on the wall (a vertical surface) instead of on the floor. If this is indeed happening, it is more likely that it is due to being intact. Neutering him can help but I would tell you that the longer you wait to have that done and the more your cat performs this, it can become a learned behaviour that would persist even after being neutered, but I would still perform it in the hope that it would eliminate it. If it has any other appearance, I would recommend approaching it the way I’ve described above.

If no medical condition is found, then we have to consider behavioral reasons as a source. Cats are very in tune with their environment and so there are so many stimuli that can cause them to become anxious or change their behavior. For example, I remember a patient that stopped going to the litter box because an owner started storing luggage near the litter box. Cats can also perceive things that we can’t, so a high-pitched sound that doesn’t bother us, may bother them and cause them fear around the litter box. Now you may go hunting for these things, but in the end, it’s rare to find. It doesn’t take much for a cat to start eliminating inappropriately and once they do, the reason they started doing it may be gone but they are now just continuing. The longer you let this go on, the more it’s going to be ingrained and difficult to resolve.

There are some strategies you can employ to focus their attention on the litter box.

You can also start putting treats near the litter box but I always tell people not to let the cat know you’re putting them there. This way they just happen to find them there. They may start visiting in the litter box just to see if they’ve shown up again and since they’re there, they might as well use the litter box.

You can also place litter box in various areas of the house and remember to clean them daily. Keep in mind that cats can develop issues like arthritis which can make it difficult for them to go up and down the stairs and this may be the cause of not visiting the litter box.

When a cat is really overweight and large, they may no longer fit in the litter box and it may not be comfortable to use it. I often have owners buy a large bin, cut the sides really low, put it in a garbage bag and sprinkle litter on top of it creating their own litter box with a much larger surface area and low sides to it so it’s very easy to step in and out.

There are also products that you can sprinkle in the litter that is supposed to attract them to it. These can work in some cases but not in others.

If anxiety is the cause, you may be able to improve this with environmental enrichment. Get your cat playing more and engaging it with toys. This will reduce stress.

If they are eliminating in a particular spot, like on a bed or in a bedroom, you can restrict access to this area. Always clean the area where they have been eliminating very thoroughly. Even a small amount of debris or odor will make them return to that place and think it’s an appropriate place to eliminate.

I recommend that you implement some of these strategies regardless of the cause. They may be effective at changing the behaviour even it is caused by not being neutered.