Skip to main content

If your cat is aggressive towards other cats, here’s how to fix it

You may have thought getting a second cat would be good for your “furst” born. Perhaps you hoped the new kitty would give the first one someone to play and cuddle with while you worked.

However, the relationship may be getting off to a rough start. Perhaps the two have literal catfights or show aggressive behaviors, such as hissing or swatting. Though disappointing, it’s common for felines not to get along at first. The ASPCA says aggression is the second-most frequent behavioral problem animal behaviorists see in cats. It may seem harmless given how small cats are, but it can be dangerous. Cat bites and scratches can be painful and cause infections in humans and animals.

Recommended Videos

It’s also far less stressful for everyone if your cats are friendly towards one another or can at least peacefully co-exist. Here’s how to help encourage your cats to get along.

orange cat and black cat hugging
Image used with permission by copyright holder

How long does it take for cats to get used to each other?

If your cats are fighting, you may be desperate to see the light at the end of the tunnel. The good news is that there often is one. The bad news is that it’s tough to predict when your cats will get along—or at the very least, ignore each other’s existence. Ultimately, it depends on your cats. Experts say that it can take days, weeks, or even months. Cats may also never truly become best friends, even if that was your hope, but they can usually learn to live under the same roof and be in a room together without issues.

How do you get cats to accept each other?

As the adult human in the room, you have the difficult task of trying to help your cats get along. It can be a challenge, but here are a few tactics to try.

Show patience

You may be in a hurry to have your cats kiss, not hiss, and make up. However, plan to go slowly and show patience. Go at the pace of the cat who is most stressed out, and understand that animals often pick up on your stress. Try to remain calm and loving during the process.

Introduce via scent

Though it’s natural to want to put your cats together and let them work it out, that’s not the best idea. It’s best to have the two of them get used to each other’s scents first. Put the new cat in a cozy spot, like a bedroom. Make sure it’s a space your other cat doesn’t love to lounge in, as that can cause territorial issues. Then, do a blanket swap so the two can smell one another from afar.

Treat them well

Once cats have had at least a couple of days to get used to each other’s scents, you can have them see one another face to face. Keep a baby gate between them—they’re not ready to get too close just yet. Then, give them a high-quality treat or food, like some canned tuna or chopped turkey. Treat them for remaining calm, showing interest in one another between the gate, or even ignoring each other while chilling out near the barrier.

Keep the interaction brief, and try to end on a positive note. If you notice a cat getting stressed, put the new feline back in their safe space.

Extend the time together

Gradually increase their time together, supervising each time and rewarding positive or neutral interactions. After several days or weeks of no-stress interactions, you can graduate to allowing them to be alone together without your watchful eye.

Neuter your male cat

Male cats who aren’t neutered are more likely to show aggressive behavior. Getting the fur baby snipped can help alleviate issues.

Give them their space

Even when your cats are getting along, you’ll want to ensure that they have their own spaces. Put food and litter boxes in separate areas, as these are two necessities cats (understandably) can get especially protective over. Allowing them to have their own tree and bed can give them security and quiet time.

gray cat white chair
Image used with permission by copyright holder

Can I force my cats to get along?

Sadly, not all cats can get along with one another. If you’re struggling to keep the peace between your cats, speak with your vet or an animal behaviorist. They are experts in figuring out how to get cats to get along and may have new tactics to try. Sometimes, the most humane approach is to find a new home for one of the kitties.

Cats aren’t always excited to have a furry friend. They can be downright aggressive towards one another. They may fight, scratch, or hiss. Though kitties are small, catfights can get dangerous. One or both of your cats could get hurt during the fight, leading to an ER visit. You may also get injured trying to break up the fight.

It’s best not to let cats figure it out by fighting, though. You’ll need to step in as the mediator. Keep cats separate, and do a blanket swap so they can get used to each other by smell first. Then, gradually start re-introducing the two, first with a baby gate and then without one. Reward good and neutral interactions with treats. Eventually, you’ll probably be able to leave them alone together. If you’re struggling, speak to a vet or animal behaviorist.

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…
Can cats eat apples? What’s safe and what’s not
How to prepare apples for cats
Fluffy cat looking at table of apples

It's essential to feed your cat a nutritionally complete diet, but you have a lot more leeway when it comes to cat treats. Meals should make up most of your feline friend's diet, so the treats you choose don't have to be as nutritious and filling. Treats are for enjoyment and rewards! Many human foods are safe to share with your cat as treats and some are toxic, but it can be hard to remember what's on the list.
If you've ever wondered, "Can cats eat apples?" you're not alone. After all, fresh fruits are an essential component of a balanced diet for people, so is it the same for cats? Let's find out!

Can cats eat apples?

Read more
Why your cat sleeping at your feet is a big compliment
If you've ever wondered about this cat behavior, this article is for you
Calico cat lying on a white comforter

Have you noticed that when you go to sleep, your cat automatically heads to the foot of the bed and curls up by your feet? It's no mistake, and it's not your cat giving you the cold shoulder, either. This is a deliberate decision on your kitty's part, and there are many reasons why they might choose to sleep there instead of curling up on your stomach or by your shoulder. Actually, if your cat sleeps by your feet, you should take it as a compliment and feel flattered.

So, why do cats sleep at your feet? It's a mix of your cat's affection for you, a feeling of safety, and even the body heat you generate that plays into your cat's decision to sleep at the foot of the bed. It's both smart and sweet!
Why do cats sleep at your feet? The reason is sweeter than you think

Read more
How to take care of a blind cat: The tips and tricks to know
Creating a home that's comfortable and helpful for blind cats
A closeup shot of a one-eyed orange tabby cat.

With over 2 million adoptions taking place at animal shelters in the U.S. every year, pet lovers have every reason to celebrate. But it's not all sunshine and rainbows. The adoption rate is much lower for "special needs" animals like blind cats. It takes a wonderfully special kind of person to adopt a disabled fur baby, but those who do give special needs animals a forever home don't regret it. 

Not only are you saving a life when you adopt a disabled pet, but you're also setting an example for family members, friends, and neighbors. As pet parents of disabled fur babies will tell you, differently abled pets, including blind cats, are just as loving and fun as any other.

Read more