Skip to main content

Why do cats fight? They’re not just being jerks

The real reasons your cats might be fighting

a closeup of gray striped cat hissing
Erik-Jan Leusink / Unsplash

When cats display behaviors that we humans consider socially unacceptable or quirky, the temptation is often to say, “Cats!” or “What jerks.”

Sometimes, these statements are all in good fun and tongue-in-cheek. Think: Is my cat plotting against me when they stare? Does Kitty want me to get fired when they hop on my work-from-home virtual meeting? The truth is that cats don’t display behaviors out of spite, though. Instead, behaviors are a form of communication — a clue into your pet’s feelings and challenges.

When asking the question, “Why do cats fight?” — finding the correct answer is important. Catfighting can prompt pet parents to re-home pets or return them to shelters. Fights can also become unsafe for humans and pets in the house. Cat fights can break out for various reasons. Below, we’ll go over the common reasons for catfights and what to do.

Why do cats fight?

side angle of a cat with wide eyes
Borna Bevanda / Unsplash

Catfights can break out for various reasons, ranging from territorial concerns to play aggression. The trigger is pet-specific, so as you learn more about common ones, consider what your cat was experiencing before the fight occurred.

Territorial concerns

Cats are naturally territorial. In the wild, this was a life-saving behavior. In your home, you may not think cats need to be territorial. However, you can’t take the “wild” out of the cat. Kitties may feel the need to defend their turf — a favorite window perch, their dishes, the litter box, and even access to their favorite human (you, of course). Territorial aggression is common when introducing new cats, especially if you go too quickly. Ensuring cats have access to their own creature comforts, such as giving each one their own litter boxes and dishes in separate spaces in the home, is a great way to prevent this issue — ditto for gradual introductions that start with scent swaps.

Fear or stress

A scaredy cat isn’t simply a figure of speech. Cats can experience fear and stress that can trigger them to lash out at other cats. As with territorial aggression, anxiety and stress can also pop up during the introduction process. A cat may be afraid of a new kitty. The new family member may feel scared or stressed in an unknown environment. Other times, a dominant cat may play the role of a bully, which can be stressful. Eventually, the submissive cat may lash out. Again, slow introductions and separate spaces can help, as can pheromone products that might lower stress levels.

Play aggression

Cats aren’t pack animals like dogs. However, some felines enjoy rousing play sessions, including with one another. Sometimes, play goes too far. A cat may get a bit too rough. Play aggression can happen in cats that are poorly socialized at a young age or under-stimulated kitties that could use more physical and mental activity during the day. Providing plenty of opportunities for enrichment, such as through toys, is huge.

Redirected aggression

This form of aggression can send pet parents for a loop and feel unexpected. A cat displaying redirected aggression experienced something within their environment, such as a loud noise, a stray dog, or a kitty invading the yard. Since the pet can’t direct their anger at the source of the noise or intruders, they may turn around and go after a housemate. Cue fights. You can try to reduce access to triggers, such as keeping stray animals out of your yard or blocking views from windows that let your pet see these intrusions.

Hormonal

Not neutered or spayed cats may show aggression as they desire to mate. Spaying or neutering your cat can prevent this aggression (and subsequent fights) from occurring.

How to stop catfighting

42 North / Unsplash

Catfighting is stressful. Your natural inclination may be to run into the proverbial fire and rip kitties apart. However, the safest bet is to try to distract them with a loud noise. If catfights are frequent, speak with your veterinarian. They may be able to suggest products and medications that can help calm one or both cats down or perform spay/neuter procedures.

Closing thoughts on cats fighting

Pixabay / Pexels

Why do cats fight? There are several reasons. Cats might fight as a response to stress/fear, territorial concerns, hormones, and rough play. Sometimes, cats may redirect aggression from stress caused by a source they can’t access (like a car backfiring) toward a cat. Cat fights can be stressful and dangerous to kitties and humans alike. Try to separate cats in the middle of a fight without using your hands, such as with a loud noise to distract them.

Giving each kitty their own food, toys, and litter boxes can ward off fights. A vet can help you with your worries. Manage expectations, though. Your cats may not be best friends like you hoped (human siblings aren’t always, either). However, multiple cats can often live peacefully under the same roof.

Editors' Recommendations

BethAnn Mayer
Beth Ann's work has appeared on healthline.com and parents.com. In her spare time, you can find her running (either marathons…
Why do cats open their mouths when they smell? It’s for a really cool reason
The Flehmen response is a little-known reaction in felines that allows them to take in more of their surroundings
A white and tabby cat with their mouth open

Think of the last time you smelled something foul. How did you react? If you're truly made of steel, you may not have reacted at all, but for most people, it's impossible not to flare your nostrils at least. You may have even made a face! All of these reactions are perfectly natural, though humans aren't the only species that reacts to smells, both good and bad. Even your cuddly cat sniffs out the world around them sometimes,
If you've ever noticed your cat reacting to a smell, you're not alone. Some folks have even noticed their cat opening their mouth -- and even sticking out their tongue -- while smelling, but it's not so clear what this means. Is this a reaction to a scent, or is it just a way to get an extra thorough sniff? Whatever it may be, we're here to find out.
Needless to say, you're not alone if you're wondering, "Why do cats open their mouths when they smell?" We've scoured trusted sources to find out, and this is what we know.

Why do cats open their mouths when they smell?
Watching your curious cat open their mouth in a kind of sneer while they get a good sniff of something can raise a lot of questions -- it's understandable. When people do this, it's usually a response to an unpleasant smell, but when cats do this, they're actually trying to get a better understanding of the scent in the air.

Read more
How long do cats live? The answer may actually depend on their human parent
Learn about the average cat life expectancy and how you can extend it
Kitten sitting on a tree stump in front of a tree

Cats are wonderful additions to our families, and they can quickly become beloved family members. But, like most pets, cats have shorter lives than humans. As tragic as this is, it's only normal to want to spend as many years as possible with your cat. Fortunately, there are many ways you can help increase the chances of your cat living a long and healthy life.
But it's also important to be realistic about your cat's lifespan. How long do cats live? First, it's important to remember that cat life expectancies are really just a guideline — it's best to just appreciate and enjoy each day you can share with your fur baby.

How long do cats live as pets?

Read more
Why do dogs hate cats? The truth behind this age-old grudge
Find out what's behind the dog and cat rivalry that's been around forever
A black pug and a tabby cat sit on a table

Even if you've never been around dogs or cats, you've probably heard about their rough relationship. Cats and dogs are rivals at best and enemies at worst -- right? It sure seems that way when there are thousands of stories and even videos of dogs and cats not getting along. Whether you've witnessed a dog-cat chase with your own eyes or have heard your pup barking at the neighbor's cat at all times of the day, it's only natural to wonder, "Why do dogs hate cats?"
Some dogs couldn't care less if a feline friend stopped by for a visit -- that's true -- but plenty of other pups would go positively bananas. So what's the difference?

Why do dogs hate cats?
While it's easy to assume that dogs and cats "hate" one another because of their vast differences, it's a bit more complicated than that. Even dogs that regularly chase cats don't do so out of malice or hate. It's an instinctual thing!

Read more