Introducing Cats: Strategic Tips for Success

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Amanda is introducing her new cat to her long-time resident cat.

Amanda Campion / Cats.com

Introducing a new cat to your home can be both exciting and daunting. Ensuring a smooth introduction is crucial for fostering positive relationships among your feline companions from the start. This will help minimize stress for both cats and their guardians. A gentle and gradual cat introduction is crucial for fostering positive relationships in your multicat home.

This comprehensive guide provides a strategic plan for successful cat introductions, whether you’re welcoming a new kitten to the family or integrating adult cats into your household.

Importance of Proper Cat Introduction

Research in feline behavior underpins the critical role of proper introductions helping to prevent conflicts and promoting harmony in multicat households. Cats are territorial creatures by nature, and introducing a new cat into their established territory can trigger stress and aggression if not carefully orchestrated. Using your knowledge as a cat parent and ensuring that various elements of the introduction plan are met can vastly improve not only the time taken but also reduce the risk of a failed introduction or negative experience.

Understanding Cat Behavior

Before introducing cats, it’s crucial to understand their behavior and subtle communication cues. Although cats do vocalize, and they have an extensive repertoire, the majority of their communication is nonverbal. They predominantly use body language, which includes body positioning and micro facial expressions, in addition to scent marking, to establish their territory and communicate with other cats.

Recognizing these cues as signs of stress, fear, or aggression can help you intervene appropriately during introductions.

Start With Resource Preparation

Preparing a safe space for new arrivals helps reduce their stress and encourages them to feel safe in the environment. Make sure each cat in the home has easy access to their needs—food and water, litter box, toys, comfy cat beds, hiding spaces, and ideally a window view. If any cat is in a smaller area, place their litter box as far from their food and water as possible.

Using synthetic cat pheromones, like a spray or plug-in device, is often helpful too. These products mimic the facial pheromones that cats naturally deposit around their territory. Pheromones convey a message to the cats that all is well.

Gradual Introduction Techniques

The cats are eating their own food.

Amanda Campion / Cats.com

Allow the new cat to decompress on their own in a quiet space with no pets or noisy children around. After a day or two, you may start introductions with scent swapping. You can swap the cats’ used blankets with each other.

Or you can use a clean cloth to wipe around the resident cat’s mouth and whiskers in a stroking motion to pick up their unique facial pheromones. You’ll then leave this cloth near your new cat’s favorite sleeping space. Use a different cloth to do the same with the new cat’s pheromones.

Do this several times a day to get the cats familiar with each other’s scent. Don’t skip this stage before allowing any visual interactions.

Safe Visual Introductions

Use a barrier for the initial visual introduction. Baby gates or dog mesh barriers facilitate a safe space where cats can see and smell each other without having any direct contact. In a pinch, a pet carrier or kennel can also be used. In this case, be sure to read the caged cat’s queues very closely. Since they can’t run away, you’ll have to do the running for them if they begin to panic.

Supervise these initial interactions closely. Provide high-reward treats as a distraction—such as a yummy lickable cat treat or their favorite boiled chicken. These provide a positive connection with the visual introduction of the new cat or kitten.

Be ready to intervene swiftly if signs of aggression or stress arise. Do this by ending the visual meeting or providing fun distractions, such as interactive cat toys. Gradually increase the duration and frequency of these interactions over some time as cats become more comfortable with each other. But how do you know how well it’s going?

Signs of Positive and Negative Interactions

Two cats are playing in the room.

Amanda Campion / Cats.com

Positive signs include relaxed body language, rolling and displaying, and slow blinking at each other. As meetings progress, your cats may begin relaxing closer and closer to the barrier.

Negative signs at this stage may include hissing, growling, or swatting the barrier. If this happens, just continue the scent swopping and positive reinforcement of high-reward treats and foraging mats.

Contrary to some suggestions, meal times should not be used to make initial connections. Your cats should not have to choose between stressful eating and feeling safe while going hungry. Let them eat, drink, sleep, and use the litter box privately.

There is no set time for how many of these controlled visits you may need. You’ll be guided by your cats’ emotions and reactivity. If it goes well, you’ll need fewer meetings. If the cats are stressed, they may need short meetings once per day for several days.

Barrier-Free Meetings

When both cats become non-reactive to the secure meetings, you can lose the barrier and try a closely monitored meeting.  Come prepared with their favorite treats or snack-filled snuffle mats. Get the cats engaged with fun activities and then remove the barrier. They may not even notice they are space-sharing at first.

This stage can be over very quickly. If it goes well, the introduction is complete!  If there is any sign of conflict or opposition, go back to barrier visits and try again another day.  Harnesses and leashes may be used for non-aggressive but exuberant cats just to ensure a positive interaction under parental control.

Kittens tend to be very robust and less of a concern as the resident cat will not perceive them as such a threat. If you are introducing a kitten to your cat family, you can expect the introduction to go far quicker. But as I say, “Take the time it takes so it takes less time!”

Introducing cats requires careful planning, patience, and understanding of feline behavior. But it is always worth it to increase the likelihood of successful introductions and foster harmonious relationships among feline companions.

Frequently Asked Questions

How long does it take for cats to adjust to each other?

The adjustment period varies depending on individual cats and their personalities. While kittens may just become part of the family almost immediately and some cats may adapt quickly within a few days, others may take several weeks or even months to become comfortable with each other.

Can I introduce multiple cats at once?

Introducing multiple cats simultaneously can be challenging and may increase the likelihood of conflicts. It’s generally recommended to introduce cats one at a time to minimize stress and allow for gradual acclimation.

What should I do if my cats continue to fight?

If conflicts persist despite efforts, seek professional guidance from a veterinarian or animal behaviorist. They can assess the situation and provide tailored advice to address underlying causes of aggression and facilitate peaceful interactions among cats.

View Sources
Cats.com uses high-quality, credible sources, including peer-reviewed studies, to support the claims in our articles. This content is regularly reviewed and updated for accuracy. Visit our About Us page to learn about our standards and meet our veterinary review board.
  1. "How to introduce new cats to your home - The Humane Society of the ...." https://www.humanesociety.org/resources/how-introduce-your-new-cat-resident-cats.

  2. "Introducing another Adult Cat or Kitten to your Cat." 23 Jul. 2020, https://icatcare.org/advice/introducing-an-adult-cat-to-your-cat/.

     

  3. "The Trainable Cat: A Practical Guide to Making Life Hap…." 04 Aug. 2016, https://www.goodreads.com/book/show/29101479-the-trainable-cat.

  4. "7 Mistakes to Avoid When Introducing Cats and Dogs - Newsweek." 26 Sept. 2021, https://www.newsweek.com/introducing-cats-dogs-mistakes-avoid-dos-donts-pet-advice-1630811.

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About Amanda Campion

Amanda Campion is a Clinical Animal Behaviourist and the first animal behaviour technician (ABT) with the APBC in the UK. She runs kitten kindergarten courses and owner education webinars, focusing on solving various feline behavior issues. Amanda has extensive experience rehabilitating cats from shelters and working alongside veterinary professionals to enrich the lives of cats and their owners.

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