Why Do Cats Scratch?
A cat clawing at the sofa, carpet or side of a doorway can look destructive, but scratching is a normal feline behaviour that serves several important physical and behavioural functions.
Cats primarily scratch to maintain their claws, stretch their bodies and communicate through visual and scent marking. Stress or frustration can also trigger scratching, while some cats learn that scratching in particular places is an effective way to get their owner's attention.
These motivations aren't mutually exclusive. A cat might use the same spot to stretch, maintain their claws and leave scent signals — while also discovering that scratching there gets a reliable reaction from their owner.
This is why when, where and what your cat scratches can tell you a lot about what is motivating the behaviour.
This guide was developed with behavioural insights provided directly by qualified clinical animal behaviourist Lucy Hoile. We'll look at the five main reasons cats scratch and how context can help you understand what's motivating your own cat's behaviour.
1. Scratching maintains the claws
Cats aren't simply "sharpening" their claws when they scratch. Claw maintenance is one of the behaviour's main functions, but the process is more like removing worn material than sharpening a blade.
As a cat's claws grow, the older outer sheath is periodically shed. Scratching helps loosen and remove this worn layer, revealing the newer claw underneath.
Those small, translucent, crescent-shaped pieces you might find beside a well-used scratching area are usually shed claw sheaths, not pieces of a damaged claw.
Why is claw maintenance important?
Cats rely on their claws for climbing, gripping, hunting and defence, so keeping them in good condition is a biological need. It's one reason scratching shouldn't be viewed simply as an unwanted habit to stop.
Giving your cat an appropriate surface to scratch allows them to perform this natural behaviour without relying on carpets, sofas or other furniture.
Cats can have quite different preferences. Some like to scratch upwards against a tall, stable surface, while others prefer scratching horizontally along the floor. Providing a choice can therefore be more effective than assuming every cat will use the same type of scratcher.
For cats that prefer to stretch upwards, a tall scratching post or cat tree can provide the height and stability they need, while cardboard cat scratchers can be a good option for cats that prefer scratching horizontally.
Age can make a difference, too. Older cats may become less effective at maintaining their claws, particularly if reduced mobility makes scratching more difficult. Overgrown or thickened claws can therefore become more common with age.
Finding an intact shed sheath is generally nothing to worry about. Speak to your vet if you notice:
- Bleeding or swelling;
- Unusually thick or misshapen claws;
- Claws growing into the paw pads; or
- Repeated licking or chewing of the paws.
2. Scratching helps cats stretch
Scratching gives cats something to pull against as they stretch their legs, shoulders and body.
Watch a cat scratch after waking, and you'll often see how much of the body is involved. The front legs extend, the claws grip the surface and the body lengthens backwards, creating a deep stretch rather than simply a movement of the paws.
Why do cats scratch after waking?
For many cats, scratching appears to form a natural part of their post-sleep routine. After resting, they may seek out a familiar surface, reach forward and pull against it as they stretch.
This also helps explain why some cats make such a dramatic movement when they scratch. They're not necessarily scratching more intensely — they're simply using the surface to extend their body fully.
For cats that enjoy a full vertical stretch, the height and stability of a scratching surface can matter. A short or unstable post may not allow a larger cat to fully extend their body in the way they want to.
Petfuffle's tall cat scratching posts and tree towers include taller sisal scratching surfaces designed to give cats space to scratch, climb and stretch.
Pay attention to when your cat scratches. If it regularly happens after getting up from a favourite sleeping spot, stretching is likely an important part of what that behaviour achieves.
3. Scratching is a form of communication
Scratching does more than leave visible marks on a surface. Cats have scent glands around their paws, so the behaviour can also deposit scent, creating signals that other cats may detect after the scratching has stopped.
Lucy identifies marking as one of the three main reasons cats scratch, alongside claw maintenance and stretching. This helps explain why the location a cat chooses can be just as significant as the surface itself.
Why does my cat keep scratching the same place?
If your cat keeps returning to the same sofa corner, rug or doorway, the material may be only part of the attraction. Revisiting an established scratching spot allows them to refresh the marks already left there.
Look at where your cat has chosen.
Is it:
- On a route they use every day?
- Beside a favourite sleeping spot?
- Near an entrance or doorway?
- Close to a window overlooking other cats?
- Somewhere socially significant within the home?
These are all locations where marking may be more relevant than it would be in a quiet, rarely used corner.
This is also why simply putting a scratching post somewhere convenient for us doesn't guarantee a cat will use it. Location matters.
If your cat repeatedly scratches a particular area, placing an appropriate scratching surface close to that established location can give them another way to perform the same behaviour.
For cats that prefer scratching prominent vertical areas, wall-mounted cat scratchers can be particularly useful because they allow the scratching surface to be positioned where the cat already wants to scratch.
Scratching location can be especially interesting in multi-cat households or where unfamiliar cats regularly appear outside. It doesn't automatically mean your cat is being territorial, but where and when the scratching happens can provide useful context.
4. Scratching can be a response to stress or frustration
Not every bout of scratching is about claw care, stretching or marking. Sometimes, what happened immediately beforehand provides the biggest clue.
Lucy explains that scratching can occur as a displacement behaviour — a familiar behaviour performed in response to emotional arousal, tension or frustration.
For example, a cat might scratch immediately after a confrontation with another cat. Or they may want to go outside, find that they can't, and turn to scratching instead.
In these situations, scratching can provide an outlet for the tension they're experiencing.
How can you tell if scratching is linked to stress?
Scratching on its own isn't a reliable sign that a cat is stressed. The context in which it happens is much more revealing.
Look for a pattern.
Does your cat regularly scratch:
- After seeing another cat through the window?
- Following tension with another cat in the home?
- When they're unable to access somewhere they want to go?
- Following another predictable event that appears to cause frustration?
If the same trigger repeatedly comes before the scratching, it suggests there may be an emotional component to the behaviour.
In that situation, simply stopping the scratching doesn't address what's driving it.
Lucy advises focusing on the source of the stress or frustration instead, with the aim of reducing the underlying need to scratch at that moment.
5. Scratching can become a way to get attention
Attention-seeking scratching is different from the other reasons we've covered because it can develop through learning.
Lucy explains that a cat might initially scratch the sofa for claw maintenance, stretching or marking. But if doing so repeatedly causes their owner to look over, speak to them or get up, the cat can learn that scratching is an effective way to get a response.
Can telling a cat off encourage scratching?
Potentially.
From the cat's perspective, attention doesn't necessarily have to be positive to be rewarding.
Imagine your cat starts scratching the sofa and you immediately say "Stop", get up and walk towards them.
The sequence becomes:
Scratch sofa → human responds
If that happens consistently, your reaction can become an additional reason for the behaviour to continue. Even being told off may be more rewarding than receiving no attention at all.
This doesn't mean a cat originally started scratching because they wanted attention. The attention-seeking element may have been learned later, on top of the original reason for scratching.
That distinction is important: what starts as normal scratching can acquire a new purpose because of what happens afterwards.
How to tell why your cat is scratching
Cats can scratch for more than one reason, so no single clue provides a definite answer.
Instead, look at three things:
Where does your cat scratch? What happened immediately beforehand? What usually happens afterwards?
| What you notice | What it could suggest |
| Scratching shortly after waking | Stretching may be a key reason |
| Shed claw sheaths around a favourite spot | Normal claw maintenance |
| Returning to the same prominent location | Marking may be contributing |
| Scratching after seeing or encountering another cat | Emotional arousal or tension may be involved |
| Scratching after being prevented from doing something | Frustration may be a trigger |
| Scratching reliably makes you look, speak or approach | Attention may have become a learned reward |
| A sudden change in normal scratching habits | Look for wider health, environmental or behavioural changes |
Looking at the pattern rather than the scratching in isolation can make it much easier to understand what your cat is trying to achieve.
Is scratching around a food bowl the same behaviour?
Usually not.
If your cat scrapes at the floor around their food bowl, it can look like another form of scratching, but it's generally better described as pawing.
Lucy Hoile explains that this is different from the deliberate scratching cats perform on scratching surfaces.
Exactly why cats paw around food isn't fully understood. Suggested explanations include:
- Attempting to cover or "cache" food for later;
- Frustration or dislike of the food; or
- An instinctive attempt to conceal traces of food from potential predators.
For now, these remain possible explanations rather than a definitive answer, and the behaviour itself is usually nothing to worry about.
Should you stop your cat pawing around their food?
Generally, no.
If your cat is eating normally and otherwise seems well, there's usually no reason to intervene.
Pay closer attention if the pawing appears alongside changes in appetite or weight, vomiting, diarrhoea, lethargy or other signs of illness.
In that situation, it's the wider change in your cat's health or behaviour, rather than the pawing itself, that warrants veterinary advice.
Why cats scratch: the bottom line
Scratching isn't bad behaviour.
Claw maintenance, stretching and marking are its three main functions, while stress, frustration and learned attention-seeking can also influence when and why it occurs.
As Lucy Hoile's insights show, the same cat can scratch for several reasons. The best clues often come from context: where they scratch, what happened beforehand and what happens afterwards.
Once you understand the motivation, you can provide an alternative that meets the same need rather than simply trying to prevent the behaviour.
That might mean a horizontal cardboard scratcher for a cat that targets carpets, a tall post for one that likes a full-body stretch, or placing a scratcher close to an established marking location.
Next: Read our How to Get a Cat to Use a Scratching Post: Expert Advice guide.
Explore: Cat Scratching Posts & Tree Towers
