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.

When To Give Up on Cats Getting Along: Facts & Tips to Introduce Them Safely

two-cats-armwrestling-fight-battle

Experts generally agree that it can take up to a year for cats to forge any kind of relationship, even if it is one of avoidance. Avoidance might not be the objective when you first introduce two cats. After all, many of us get a second cat in the hope they will keep the first cat company.

As much as we want them to become best buddies, this isn’t always possible. Sometimes, avoidance is the best we can hope for. And it is certainly better than constant aggression and regular fighting. There is no specific deadline for when you should give up on cats getting along, but as it can take a year for some cats to coexist, you might need to be prepared for the long haul.

Unfortunately, if you do have cats that won’t get along, it might be necessary to rehome one for the benefit of both.

divider 3 paws

The 5 Tips to Safely Introduce Your Cats

One of the key factors in determining whether cats will get along is the original introduction. If the introduction is rushed, or continued efforts to introduce the cats lead to aggravation and fighting, it will be very different for the cats to get along.

They will remember those first meetings and, at the very least, it will prolong the time it takes for a peaceful union. When introducing cats, follow these steps to help improve the chances of them getting along.

1. Take It Slowly

Never try to rush first introductions. It will take time for cats to form a relationship, and you need to be patient. Expect it to take several months, and if it happens any sooner, that’s a bonus. When you bring the new cat home, keep the cats separate.

Try and let them smell one another before they meet face to face. This can be done on different sides of a door initially.

Curious cat looking from a door crack
Image Credit by: namaki, Shutterstock

2. Give Each Cat Their Own Space

Before you make proper introductions, set aside separate spaces for both cats. Give them a bed or something comfortable to sleep on in different rooms and when you do make physical introductions, ensure they can both get away to their own space and out of the way of the other cat.

Cats are creatures of habit. They will return to the same spots time and time again, and they consider these spaces their own little areas.


3. Reward Positive Behavior

Once the cats have gotten used to the smell of one another, you can make steady introductions. Don’t just throw them in a room and let them get on with it. This is virtually guaranteed to lead to tension.

When either cat does something positive, reward them with fuss or even a small treat. Initially, positive interaction means ignoring the other cat or calmly sniffing them. Over time, it can include sitting and laying in the vicinity of their new housemate. And, if they eventually play together, give them lots of fuss and attention so they know this is a desirable action that you want them to repeat.

Training a cat with treats
Image Credit by: Svetlana Rey, Shutterstock

4. Give Them Their Own Resources

As well as giving them their own spaces, make sure both cats have their own resources. This means offering separate bowls with their own foods. Provide more than one water bowl and stick to the rule of one per cat plus one extra when buying and adding litter trays to the house.

If your cats have to struggle to get to their food or even their bed, this will increase the likelihood of them fighting.


5. Stop Fights Before They Happen

Look for signs of your cats fighting. Typical signs initially include growling and hissing, followed by puffed-up fur and hackles standing on end. It can progress to swiping and attempting to bite one another, but you want to stop any fights before they reach this stage. Stand in between them or encourage them to go their separate ways.

If a fight has already started you should avoid picking one or the other cat up, as this can lead to nasty scratches and bites for you.

abyssinian-cat-meowing-at-the-sofa
Image Credit by: New Africa, Shutterstock

divider 2 cats

The 4 Tips to Encourage Warring Cats to Get Along

If it’s been several months and your cats still won’t get along, there are some steps you can take to try and improve the situation.

1. Identify Triggers

Look for specific triggers that might be causing hostility. If one cat keeps eating the other’s food or likes to sleep in its bed, make sure you have ample resources and items so they can both have their own. Try to avoid these triggers so the chances of fighting are lower.

Fights can cause injuries, but they can also cause animosity that is difficult to heal between two cats that already dislike one another.


2. Try Reintroducing Them

It might be time to try reintroducing the two cats. This means giving them separate rooms, keeping them apart, and first letting them sniff the other and get used to their smell. Take a blanket belonging to one cat and put it in the room with the other.

They can get used to the smell without the cat being there.

Tabby pet cat sniffing human hand palm
Image Credit: Anna Kraynova, Shutterstock

3. Try Calming Products

Consider using pheromone and other calming products. These aren’t always effective, but if a pheromone spray calms your cats down enough that they can lie in the same room, you can reward them for their positive behavior and try to encourage this peaceful state.


4. Don’t Yell

It is frustrating seeing two cats fight, especially when you want them to live harmoniously together. But don’t let that frustration become shouting or reprimanding. Your cats are acting naturally. The old cat is protecting what it views as its territory, even though the new cat doesn’t necessarily want to take over.

Avoid shouting, don’t make loud noises to stop fights, and don’t throw things at them to separate a fight, even if the items are soft. Reach out to a veterinarian for help in case you would have a hard time dealing with your cat.

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 2 cats

What to Do If Your Cats Never Get Along

It does take time for cats to form a relationship, but there is no guarantee that two cats will ever get along. Even after gradual introductions, positive reinforcement, and ensuring they have their own beds, litter trays, and food, it is possible that your cats still won’t get along. If they ignore one another, which is common, this might be the best you can expect. And, as long as they aren’t fighting and injuring one another, it might be enough.

However, if they do fight and it is causing physical injuries or emotional stress in one or both of the cats, there may come a point where you have to face the reality that they can’t live together. It is heartbreaking, but the kindest thing to do for both cats may be to rehome the new cat. Take your time finding a new owner and ensure they will give the cat a suitable home and that your cat gets along with them.

cat sits in a carrier for animals
Image Credit: alenka2194, Shutterstock

Why Do Some Cats Not Get Along?

There are a lot of reasons why two cats might not get along. The existing cat might feel threatened or defensive, which can manifest in physical aggression. If there was a fight between the two of them, or if initial introductions went poorly, they will remember. And, once they’ve fought it can be difficult to convince them both that the other cat is friendly.

They might be fighting over resources or trying to assert dominance over the other. And if one or both cats are unaltered, it could be a hormonal response.

divider 3 paws

Conclusion

Many people keep two or more cats in the same house. However, it isn’t always easy to introduce a new cat to one that is already in the house. It needs a cautious approach, or the two will fight and they might challenge one another for dominance.

Even with careful introductions, though, there are still some cases where two cats will never get along well enough to share a house.

While some toy fighting and fallings out are to be expected, in the same way that two humans living together will have occasional arguments, if your cats are constantly fighting and injuring one another, it might mean they will never get along. Rehoming one of the cats is an extreme and final solution, but it really can be the best decision for both cats if the relationship is irreparable.


Featured Image Credit: Nils Jacobi, Shutterstock

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

Ask Dr. Paola – Incontinence, Hiding & Plant Safety (September 8, 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 Bite Each Other’s Necks? The Interesting Reasons

If you have more than one cat, you may have noticed that cats have a tendency to bite each other on the neck....

Can I Cut My Cat’s Nails With Human Nail Clippers? Vet-Reviewed Facts & Risks

Some cats, especially indoor cats, need to have their claws regularly trimmed. It prevents the nail from curling around and growing in on...

7 Common Kitten Health Issues: Our Vet Answers

Kittens are generally pretty hardy little things—as long as they have a warm, dry place to sleep and the right type of food,...

More related

Can a Cat Ride on a Motorcycle Safely? Vet-Reviewed Facts & Tips

As a cat owner and frequent motorcycle rider, you may wonder if you can have your cat join you on a ride. We...

Newborn Kitten Care 101: Guide & Care Sheet for a Healthy Kitty

The thought of looking after an adorable newborn kitten can be appealing, but it’s incredibly hard work! Whether you find yourself helping your...

10 Free DIY PVC Cat Furniture Ideas You Can Make Today (With Pictures)

Cat furniture is an essential part of owning a cat, but it is certainly not cheap, especially if you have multiple cats. Cats...

Applehead Siamese Cat Breed Info: Pictures, Traits & Facts

While the breed that most of us recognize as Siamese has an angular face, elegant thin bodies, and large eyes, this “classic” Siamese...

Keep reading

Can Cats Get Kidney Transplants? Our Vet Discusses Facts & Considerations

Kidney disease is one of the most common causes of illness and death in cats, with almost 80% of cats over 15 years experiencing some form of renal insufficiency. Although it is usually associated with older felines, younger cats—through congenital...

two different cats standing side by side outdoors in the garden

How Do Outdoor Cats Survive Cold Winters? Vet-Verified Facts & Care Tips

Cats are known to be self-sufficient survivors who can look after themselves quite well. But how do the feral and stray cats withstand the cold while spending all their time outdoors during winter? While they have these fantastic fur coats...

siberian cat on snow

Why Does My Cat Look Out the Window All Day? 5 Vet-Verified Reasons & Care Tips

Does your cat love their window seat? Many cats spend most of their days hanging out by a window to see what’s happening. You might not understand the allure, but you have a fluffy predator on your hands, and it’s...

ginger cat looking at the window

Are Emotional Support Vests Necessary for Cats? Vet-Verified Recommendations & FAQ

Emotional support animals (ESAs) are one type of assistance animals, however, they are different from service animals and, therefore, are subject to their own requirements and considerations. They are any animal species with no specific training that provide comfort and...

a woman and her cat with harness and leash sitting on the bench at the park

Weruva Cat Food Review 2026: Recalls, Pros & Cons

Review Summary Weruva Inc. was founded by Stacie and David Forman in 2007 and is named after the couple’s three cats, Webster, Rudi, and Vanessa. The company was started after the couple grew tired of trying to find high-quality food...

Weruva Cat Food Review

Can Cats Eat Scrambled Eggs? Vet-Verified Nutrition Facts & Info

There’s no better breakfast than some nicely cooked scrambled eggs and a couple of slices of toast. It’s simple, delicious, and nutritious. So, what’s the harm in sharing your favorite breakfast with your furry feline companion? Can your cat eat...

Can Cats Eat Scrambled Eggs

Heart Murmurs in Cats: Signs, Causes, and Care (Vet Approved)

The last thing that anyone wants, is to worry about the health of their pet. But cats are talented at hiding injuries or health problems until it might be too late. When it comes to the cat’s heart, various conditions...

Veterinarian doctor holds cat

Do All Cats Hate Water? Vet-Verified Info & Bathing Tips

Lots of dogs love jumping into ponds, swimming pools, or the ocean. But would a cat even take the plunge and dip their feet into water? Not all cats hate water. Yes, you heard us correctly! Some cats even like...

cat staring at their owner in the bathtub

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.