Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Do Cats Fight? 8 Vet-Verified Reasons & How to Stop the Fighting

Share

two cats fighting

If you live in a multi-cat household, you may be familiar with spats among your feline friends. Referred to as inter-cat aggression, cat fights are stressful to pet parents and potentially harmful to the cats.

In this article, we explore the different reasons behind cat conflicts and ways to put an end to the bad behavior once and for all.

divider 3 paws

The 8 Reasons Why Cats Fight

1. Inter-male Aggression

Do you own more than one adult male cat? They may be battling it out for a number of reasons. Typically, intact male cats will get into fights. This behavior is usually related to reproduction if there’s a female feline in the area. Ninety percent of inter-cat aggression can be prevented by neutering or spaying your pets.

two aggressive cats
Image By: Pixabay

2. Defensive Aggression

If your cat feels threatened, they’ll try to protect themselves with defensive tactics. If your kitty has flattened ears, they’ve rolled slightly to the side, or they are crouched with their tail and legs pulled underneath their body, these are usually signs that they are feeling scared. Trying to approach a cat in this posture will encourage an attack.


3. Territory

In the wild, felines will protect their territory from outsiders. It is common for a housecat to attack another kitty if they feel that they are intruding on their space.

two black cats fighting
Image By: Pixabay

4. Agonistic Relationships

Do you have many cats in your home? Your kitties may be ganging up on the lowest-ranking cat in the group, typically an infirm kitten or an elderly cat. If the bullied pet is acting like a victim by displaying submissive body language or hiding, they’re only encouraging the bullying. Be aware that cat relationships are complex, and while they do not have a linear or interdependent hierarchy, some cats get along better than others.


5. Redirected Aggression

A cat may direct aggression toward another pet or you, even if nobody touched them. For instance, your kitty may be sitting in the window and witness another cat in the yard. They’ll suddenly become extremely agitated because the stranger is intruding on their territory. If you go to pet the upset animal, they may bite you because they’re so worked up by the cat outside. The same thing could happen to another cat in your household, resulting in an unexpected cat fight.

two cats sitting on the windowsill and looking outside
Image By: VICUSCHKA, Shutterstock

6. Playing Rough

Play between cats can sometimes get rough. Sometimes the playing can escalate into a full-fledged fight. If this happens, separate the two cats immediately.


7. Environmental Changes

A change in scenery can cause a cat to get stressed. If you’ve moved houses or simply moved the litter box to another room, the cats can get upset and fight. A change in routine can also cause your pets to take it out on each other.

two bengal kittens fighting by the windowsill
Image Credit: Smile19, Shutterstock

8. Social Maturity

If your cat is between 2 and 4 years old, they may be challenging other cats in the household for ranking status. This could lead to a fight.

divider 3 paws

How to Stop Cats From Fighting

If your felines are fighting, never count on them to work things out. While your first instinct may be to try to jump in and separate the pair, you may get scratched or bitten in the process.

To break up a cat fight, try distracting the felines. Make a loud noise, such as the sudden hiss from a compressed air can, though this should not be directed at them. The idea is only to get their attention because once their focus is averted, they’re likely to stop fighting. Then, move the cats into different areas for a while. Reintroduce them only gradually and slowly, ensuring that each cat has enough space and resources. For example, each should have a plate with food at the opposite ends of a room.

If needed, keep the cats in different rooms most of the day, and then switch them between the rooms so they can both smell each other. Feed them simultaneously at opposite ends of a neutral territory. If the cats remain peaceful, you can gradually cut down the distance and increase their interaction times. Never forget to reinforce positive and peaceful interactions between your cats.

If your cats keep fighting, you may want a more permanent solution. Seek the advice of a vet or an animal behaviorist. You can also use pheromones to reduce stress, set up multiple feeding stations, and add more territorial space to prevent your kitties from having to share cat trees, beds, and hiding areas.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 3 paws

Final Thoughts

Cats fight for a number of reasons. From protecting their territory to bullying a low-ranking feline, kitties can get into physical altercations. It’s important to break up the fight as soon as possible to avoid any injuries. Try distracting them but without risking getting injured while you separate them.

The best way to prevent cat fights is to get your pets fixed. Calming pheromones and additional territorial space also work.

Using these techniques will help you and all of your cats to coexist peacefully.


Featured Image Credit: Pixabay

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Do Cats Cause Schizophrenia? Scientists Find a Link – Here’s What It Means

Being a fierce advocate (and occasional recipient of) mental health support and awareness, the term ‘crazy’ is not one I like to fling...

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

Ask Dr. Paola – Help! How Do I Know if it’s Ear Mites! (May 4, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

More related

Short-Haired Cat vs. Long-Haired Cat: Vet-Verified Differences (With Pictures)

If you’re thinking about bringing a cat into your home but are unsure whether to choose a long-haired or short-haired breed, you’ve come...

Ask Dr. Paola – Behavior Changes, Volunteering & Hair Chewing (November 3, 2025)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Why Do Cats Eat Grass? 5 Vet-Reviewed Reasons Behind the Behavior

Our beloved cats are quirky creatures with some habits that seem rather baffling to cat owners. One of these behaviors is cats chowing...

Why Does My Cat Sit In My Chair? 5 Vet-Approved Likely Reasons & Prevention Ideas

Have you recently noticed that your furry companion has hijacked your chair? Every time you walk into a room, they are sitting in...

Keep reading

Nom Nom Cat Food Review: Recalls, Pros, Cons & Verdict

Disclaimer: Nom Nom has discontinued its fresh cat food recipe and is no longer taking orders. Nom Nom hopes to return to providing fresh food to cats in the future when they have more readily available high-quality ingredients. We have...

Nom Nom Cat Food

7 Best CBD Cat Treats in 2026 – Reviews & Top Picks

The world of cat treats is constantly evolving, especially if you’re looking for some natural medical benefits from the treats too. Unfortunately there are no cat-specific CBD treats, although CBD has been recently shown to be well tolerated in healthy...

blue-maine-coon-having-treats

Why Does My Cat Throw Up After Drinking Water? 5 Vet-Approved Causes

Cats vomit for various reasons. Sometimes, you’ll notice that they throw up their food soon after eating or unrelated to the feeding time. Other times, the vomit is clear or may contain bile. You may notice that your cat is...

cat-vomiting

Is Chamomile Poisonous to Cats? Vet Approved Facts & FAQ

Many cats love to explore the great outdoors—stalking mice, or hiding among the flowers and shrubs of your garden, nibbling away at any plant that entices them. A popular plant your cat may come across on their garden adventures is...

Catster_Is Chamomile Poisonous to Cats

Why Is My Cat Panting and Drooling? Vet-Verified Causes & Prevention

Cats are usually fastidious groomers that don’t allow a single hair to fall out of place. However, there are times when cats can drool all over themselves, which is especially concerning when your cat is panting. If a cat is...

Orange cat drooling

Why Do Cats Lift Their Tail When Petted? 4 Vet-Reviewed Reasons

If you have ever been petting your cat, you may have noticed that they lift their tail or bum in the air. There is a lot of confusion as to why cats do this and what the meaning behind the...

woman owner petting and playing with her cat at home

How to Help Control Fleas in Feral Cats: 5 Vet-Approved Tips & Tricks

Most feral cats have difficult lives; one common problem they face is being infested with fleas. The parasites can be quite dangerous and lead to other diseases, which is why feral cats with fleas need our help. This article includes...

Beige or cream coloured cat scratching its ear

How To Get Rid of Fleas on Kittens: 7 Vet Approved Steps

You may be wondering what to do if you’ve recently adopted or are fostering a kitten and have seen telltale signs of fleas, such as biting and scratching. Dealing with fleas requires several steps; the kittens and the environment require...

american shorthair kitten

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.