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Spraying is a common behavioural problem in cats – find out the typical reasons behind it.

In this week’s behaviour focus post, Cats Protection Behaviour Manager Nicky Trevorrow explains why cats spray.

Why is my cat spraying round the house?

Last time I discussed why a cat might urinate or defecate on home furnishings rather than in their litter tray. Spraying is another very common behavioural problem. Most people are surprised to learn that all cats can spray, regardless of whether they are male or female, neutered or unneutered.

Urine spraying is a natural behaviour for cats and is different from normal toileting. When a cat goes to the toilet, they will generally urinate from a squatting position and usually produce a large puddle of urine in a private or secluded area. In contrast, cats will spray urine in order to leave a specific ‘scent message’ and will usually use this scent in areas of their territory in which they feel threatened. It is thought that the scent deposited acts as a ‘reminder’ for the cat to be wary and for this reason the scent must be renewed every time the smell begins to fade, in order for it to remain an effective signal. In an unneutered cat, the spraying of urine not only signals the cat’s presence but also their reproductive status. Cats also leave scent signals by rubbing and scratching and this scent communication system allows a cat to leave signals to them and other cats that last over time.

While many are aware of unneutered toms spraying, female cats can also spray when they are in season. Getting your cat neutered can help to reduce, if not eliminate, spraying for sexual reasons. Cats Protection recommends neutering kittens before they reach sexual maturity. To find a vet in your area that will neuter by four months, check out our Kitten Neutering Database.

There can be other medical reasons that can cause spraying, other than not being neutered, so do get your cat health checked by a vet to rule these out.

illustration of cat spraying

There are many motives for spraying; photo from our feline behaviour explained guide – why does my cat...?


Behaviourally, the reasons that can cause cats to spray list can be endless. The most common reason is stress. Cats always seem so relaxed, especially as they spend a lot of time sleeping, so what could possibly stress them out?

The most common stress factor in cats is in fact, other cats! It could be cats in the local neighbourhood or other cats within the household, or both. Cats are extremely good at hiding stress unfortunately so it can be pretty tricky to pick up on. The other problem is that cats won’t show obvious signs of aggressive behaviour towards other cats. It comes down to their very sensible nature of not wanting to get injured! Therefore cats will time share a favourite armchair or spend most of their time in separate parts of the house to one another. Such avoidance techniques keep them safe. It can be very revealing for owners to draw a simple house plan of their property and map out the different areas that their various cats spend their time. I’d recommend using different coloured pencils to easily differentiate between the cats.

One way to reduce competition in the house is to ensure that each cat has a set of their own resources, plus one extra set as a spare. Ideally, place a set of resources in each cat’s separate zone (as previously identified by the house plan). As frustrating as spraying is, please resist the temptation to tell your cat off, water spray the cat, or do anything else that your cat may find aversive or scary. It will only make the problem worse.

grey cat asleep on blue sofa

Cats may time share a favourite armchair to avoid each other. Photo courtesy of Connie Ma via flickr / Creative Commons


Once a cat has sprayed, if the area is not cleaned appropriately, their sensitive nose will draw them back to spray the same area again in an attempt to top up the faded scent. Many household cleaning products contain ammonia which is also found in cat urine, so using these can make the problem worse. A cheap and efficient cleaning method is to wash sprayed or soiled sites thoroughly with a warm, 10 per cent solution of biological washing powder and then rinse with clean water and allow the area to dry. If the surface is suitable, surgical spirit can be applied after cleaning to remove all lingering traces of urine. It is worth doing a small patch test first to ensure this cleaning regime will not cause any damage. Carpet is extremely absorbent and the urine often soaks into the underlay and the flooring underneath. If the area is badly soiled over a long period it may be necessary to cut out the section of carpet and underlay and treat the concrete or floorboards underneath before replacing.

This blog post is not designed to solve your cat’s spraying problem, but just give you some background information about this issue. Therefore it is worth getting a referral to a qualified behaviourist such as a member of the Association of Pet Behaviour Counsellors to help identify the cause and give you a tailored plan for your individual cat to help resolve or manage the problem.

For more information on feline behaviour, check out our cat behaviour pages.

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