At Rooke’s, we know our feline friends are full of personality – independent, affectionate, quirky and clever. But every now and then, even the most laid-back moggy can show its claws. If you’ve ever asked yourself, “Why do cats fight?” or struggled with trying to figure out how to stop cats fighting, you’re certainly not alone.
While cats may seem calm and collected most of the time, their behaviour can sometimes become puzzling, especially when tensions rise between feline housemates. In this guide, we’re taking a deep dive into cat behaviour to help you understand what’s really going on when cats clash, and more importantly, what you can do to restore harmony at home.
Why Do Cats Fight?
Cats aren’t naturally aggressive creatures, but they are territorial by nature – and that territorial streak is one of the biggest reasons why disputes arise. Even if your cats have lived together for years, a change in environment, scent, health, or household routine can spark unexpected tensions. Here are some of the most common reasons behind feline feuds:
Territorial Tensions – Cats are creatures of habit who thrive on routine and personal space. If a new cat is introduced into their territory – or even if furniture is moved – they may feel the need to defend “their patch”. This can trigger anything from a silent standoff to a full-blown scrap.
Redirected Aggression -Sometimes a cat will see something stressful (such as another cat outside the window) and take it out on a housemate. This is known as redirected aggression and is one of the most confusing behaviours for owners to witness, especially when it seems to come out of nowhere.
Medical Issues -Pain, illness, or age-related changes can make a gentle cat irritable or defensive. If one of your cats has started acting out or is being picked on, it’s always wise to rule out any underlying health problems with your vet.
Play That Turns Into a Fight – Kittens and young cats often wrestle and chase – it’s part of how they learn boundaries. But sometimes play gets a bit too boisterous, especially if one cat is significantly bigger, older, or less tolerant than the other.
Lack of Resources -If you’ve only got one litter tray, food bowl, or sleeping area for multiple cats, things can get competitive. Even if it’s subtle at first, this can lead to friction and stress over time.
How to Tell If It’s Play or A Fight
It’s not always easy to tell if your cats are having fun or getting feisty, but here are some key signs to help you de-code their behaviour:
Play Fighting:
🐾 Bodies are relaxed.
🐾 Claws are usually retracted.
🐾 Chasing, pouncing, and wrestling without injury.
🐾 Silent or with the occasional chirrup or trill.
🐾 They take turns being the “chaser” and the “chased.”
Real Fighting:
🐾 Loud hissing, growling, or screeching.
🐾 Claws and teeth fully engaged.
🐾 Ears flattened, pupils dilated.
🐾 Fur puffed up (especially tails).
🐾 One cat trying to escape.
If you’re seeing signs of real aggression then it’s time to step in, but not by diving in between them! Let’s talk about how to stop cats fighting without making things worse.
How to Stop Cats Fighting (Without Getting Scratched!)
Separate First, Reintroduce Later – If a fight breaks out, separate your cats immediately and do it safely. For example, clap your hands, use a cushion or blanket to break their line of sight, or toss a soft toy to distract them – never use your hands. Once separated, give them time to cool off in different rooms. Depending on the severity of the aggression, you may need to keep them apart for a few hours (or even a few days).
Assess the Root Cause – Understanding why your cats fight is key to solving the issue long-term. Has there been a recent change in the home? Are both cats healthy? Has one been outside and returned with unfamiliar smells? Take stock of their environment and recent experiences.
Reintroduce Gradually – If the conflict was serious, you may need to reintroduce them slowly:
🐾 Swap bedding between rooms so they get used to each other’s scent.
🐾 Feed them on opposite sides of a closed door.
🐾 Gradually allow them to see each other under supervision (use treats or playtime as positive reinforcement).
Create More Territory – Even in small homes, cats appreciate options. #RookesRecommends:
🐾 Adding vertical space (cat trees or shelves).
🐾 Providing multiple feeding stations.
🐾 Placing litter trays in separate, private locations.
🐾 Giving each cat their own hiding place or perch.
This helps reduce competition and lets each cat feel secure in their own space.
Use Calming Aids – There are some brilliant calming products available that can help support stressed or anxious cats, especially during reintroduction, changes at home, or after stressful events like vet visits or moving house. At Rooke’s, we stock a carefully selected range designed to promote calm and wellbeing:
🐾 Pet Remedy Calming Plug-In Diffuser – With a natural blend of calming essential oils, this diffuser is a gentle way to reduce tension in multi-cat households. It works by releasing slow, consistent calming signals into your home.
🐾 Beaphar Calming Home Spray for Dogs & Cats – Ideal for bedding, carriers, and any stress-prone areas, this spray helps reassure your cat in new or unsettling situations.
🐾 Scrumbles Chillz Calming Cat Treats – These tasty grain-free treats are packed with calming ingredients to support your cat’s mood naturally – perfect for daily support or as a reward during reintroduction.
Using these aids alongside plenty of patience and positive reinforcement can make a real difference in helping your cats settle and live happily together.
Long-Term Tips for a Peaceful Multi-Cat Home
Once things have settled, there are several ways to maintain peace between your feline family members:
Regular Play – Daily interactive play sessions (with fishing rod toys or laser pointers) can help cats burn off energy and reduce frustration. Play also mimics hunting which is great for their mental health.
Routine and Predictability – Cats feel safer when they know what to expect. Try to feed, clean, and play with your cats at roughly the same time each day. If change is coming (like a holiday or home renovation), plan ahead to minimise stress.
Keep an Eye on Changes – If one cat suddenly becomes withdrawn, stops eating, or starts hiding, don’t ignore it. Subtle shifts in cat behaviour are often early warning signs of tension or illness.
When to Get Professional Help
Sometimes, despite your best efforts, fights persist. Don’t hesitate to contact a vet or certified animal behaviourist. Persistent aggression can be complex and professional advice can help uncover the root cause and provide a clear, tailored plan for your cats.
Final Thoughts from Rooke’s
At Rooke’s, we’re all about helping pets and their people live better together. Feline feuds can be upsetting, but with the right approach, most cats can learn to coexist peacefully – and even become best buds over time!
Whether you’re dealing with a sudden spat or long-term tension, the key is to stay calm, stay consistent, and be curious about your cats’ behaviour. Understanding why cats fight is the first step toward resolving conflict and creating a calm, cat-friendly home.
If you’re looking for calming aids, enrichment toys, or a comfy new cat bed to give each moggy their own space, pop into Rooke’s or browse our range online. We’re always happy to help you and your feline family find your way back to peace.