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.

How to Introduce a Kitten to a Cat: 10 Vet-Approved Tips

Share

cat-smelling-kitten

Bringing home a new kitten is an exciting time for any cat owner, but if you already have a cat, you’ll need to think carefully about how to introduce them to their new furry friend. You can follow our vet-approved tips to ensure the initial meetings go smoothly. Before you know it, your cat and kitten will happily spend time in each other’s company. They may even become the best of friends!

divider single cat paw oct 2024

The 10 Tips for How to Introduce a Kitten to a Cat

1. Create a safe space for your new kitten

kitten is playing with a ball
Image By: Chendongshan, Shutterstock

Before you even bring your new kitten home, make sure you have a dedicated space for them in your house. It needs to be a quiet room that your adult cat doesn’t have access to. Choose somewhere your cat doesn’t spend much time, like a spare room. Your kitten needs to have somewhere to feel safe to sleep and get used to their new home without being overwhelmed.

Make sure your kitten’s new zone has everything that they need to stay comfortable. You’ll need to include:
  • Cat bed
  • Food and water bowls
  • Litter box
  • Toys
  • Scratching posts

2. Take your kitten for a vet check

Next is booking a health check with your vet. Don’t start introductions between your cat and kitten until you’ve been given the all-clear from the vet. They may want to vaccinate your kitten or treat them for parasites and fleas before allowing them to mix with your cat.

Also, ask your vet about the appropriate time to spay or neuter your kitten.

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!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

3. Start with scent

maine coon kitten
Image By: Pixabay

Cats can be territorial, so it will take your existing cat time to get used to sharing their territory with another cat. The best way to start this process is before allowing your cat to meet the new kitten eye-to-eye. Cats communicate using scent markers, so the first step in introducing your cat and kitten is to allow them to get used to each other’s scent.

After your kitten has been home a few days and has had all their health checks, place a fleece blanket, cat bed, or another soft item in their room. Do the same with your cat. This item will become saturated with the scent of each cat. After a few days, swap the items between the cat and the kitten. All you need to do is place it in the room and allow your cat or kitten to investigate it in their own time. Don’t be tempted to put the item in their bed and expect them to want to sleep in it, as first, they need to become familiar with the scent of each other.

If either cat has an extreme reaction to the item, like hissing, keep repeating this process and swapping the items between rooms until your cat and kitten are less reactive. You can also use pheromone diffusers to help your cat and kitten feel less anxious.


4. Allow the cat and kitten to see each other

a kitten in a cage
Image Credit: Naratiwat Pochoom, Shutterstock

Once your cat and kitten are used to each other’s scent, it’s time for their first face-to-face meeting! It’s best to keep it short and sweet. You could install a plastic screen in a door frame so they can see each other but not interact.

The goal is to let each cat observe each other briefly. Depending on their personalities, they may be instantly curious or fearful. Watch both cat’s reactions closely, and don’t move to the next stage until they seem comfortable seeing each other.


5. Do short meetings

cat and kitten with a pot of cat grass
Image by: Irina Kozorog, Shutterstock

Once your cat and kitten get used to seeing each other, it’s time to allow a closer face-to-face meeting. Again, keep the first meetings short, and watch the cat and kitten for any signs of stress or aggression. Older cats can take longer to come around to the idea of accepting a new kitten into their home, and this stage may take time.


6. Feed your cat and kitten together

cat and kitten eating in one plate
Image Credit: Irina Kozorog, Shutterstock

As your cat and kitten get used to spending short time together, you can start feeding them in the same room. This is an excellent way to get them used to spending time together doing something pleasurable.

Place the food bowls somewhere that your cat and kitten can see each other but not so close that one cat or kitten is tempted to eat the food from the other bowl! Keep these short meetings supervised, and allow your cat and kitten to return to their own spaces once they’ve finished their food. If they want to interact at this point, that’s great! Just ensure you stay with them as they get to know each other.


7. Watch for signs of stress

cat staring at the new kitten walking towards her
Image Credit: christopher babcock, Shutterstock

As your cat and kitten get used to spending more time together, keep an eye on their behavior. Warning signs that you need to go back a few steps include:

  • Urination in inappropriate places
  • Excessive vocalization
  • Aggression
  • Abnormal grooming

If you’re concerned, speak to your vet and ask them if there’s anything else that you can do to reduce the stress or anxiety in either or both cats. You may find that your cat and kitten will start to try to work out where the boundaries between them are. They may play fight, pounce on each other, or compete for their toys.

Watch that none of these interactions escalate into violence. Hissing and puffing up their fur indicates that your cats are not feeling comfortable with each other’s presence, so at that point, end the interaction, and allow them both to return to their own safe spaces before trying again later.


8. Offer plenty of treats

Two cats being fed cat food from a tin can
Image Credit: Vershinin89, Shutterstock

Treats almost always help! Make sure you have enough for both cats. When you see them interacting nicely with each other, offer a treat to help reinforce this positive behavior. If you’ve already been training your older cat using positive reinforcement methods, doing the same with your kitten is a great idea.


9. Maintain a routine

Cat groming a kitten in the garden
Image Credit: Peter Iulian, Shutterstock

A routine can help your cat and kitten feel more confident and secure in their daily life. Try to schedule things like meal times, and stick to a routine with meetings between your cat and kitten. They’ll both need time to relax on their own after meetings, so make sure you give them plenty of time to do so. Keeping to a routine can also help minimize stress.


10. Stay patient!

cat and kitten playing outdoors
Image By: Volodymyr Plysiuk, Shutterstock

Introducing a new kitten to your cat can feel like a big step, and you indeed need to prepare to make it a success. But with a little planning and patience, you can look forward to spending time with both your cat and kitten as they get to know each other.

divider cats oct 2024

Conclusion

Although some cats and kittens only take a short time to become friends, others require several weeks or more to be comfortable around another feline. Introducing a new kitten to an adult cat is a gradual process you can’t rush, and some adults have more problems with a new creature invading their territory. However, if you follow our tips and are patient with the process, your felines will eventually learn to live together.

See Also:


Featured Image Credit: Irina Kozorog, 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

Your Cat Ghosted Your Bed: Here’s What Changed

Cats are particular about where they sleep. Not just a little particular, but obsessively, methodically particular. They’ll test seventeen surfaces, circle a spot...

Figure Skater’s Secret: Land Like a Cat – About That Viral Photo Though…

Even if you’re not into sports, you’d have to be keeping well clear of the headlines to have not heard about the 2026...

Ask Dr. Paola – Help! My Cat Chews on Wires! (February 23, 2026)

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

Why Cats Pee on Furniture (And How to Make Them Stop)

Cats peeing on furniture isn’t a behavior problem. It’s a communication problem. Your cat can’t tell you their litter box hurts to use,...

More related

Why Do Mother Cats Attack Their Older Kittens? 4 Vet-Reviewed Reasons

Queens occasionally reject kittens who appear to be ill or spend less time caring for weaker ones when they have particularly large litters...

Do Cats Have an Evening Routine? Vet Approved Facts & FAQ

Cats are creatures of habit, and they love routine. That’s why they know when dinnertime is approaching and will let you know if...

8 Pet-Friendly Hotels in Durango, CO (2026 Update)

Durango was once a Gold Rush hotspot, but today, it’s evolved into a modern peek into history. Admire the Sierra Nevada Mountains, amble...

Will My Male Cat Be More Affectionate After Neutering? Vet-Reviewed Facts & FAQ

An unneutered male cat can be… a handful, to say the least. Otherwise known as tomcats, there are a multitude of reasons to...

Keep reading

How Hot Is Too Hot for a Cat? Vet-Approved Facts & Summer Safety Tips

We are constantly adjusting the temperatures in our home according to how hot or cold it is outside. However, most pet parents don’t think about their pets when doing this. Can cats get too hot? If so, then how hot...

cat heat

How to Make Cat Hair Grow Back Faster: 9 Vet-Verified Ways

There are many reasons why a cat may lose their hair. For instance, surgeries often require that some of the fur is shaved. Some illnesses and underlying problems can cause hair loss as well. For instance, allergies can cause a...

person brushing a balinese cat

Can Cats And Dogs Drink From the Same Water Bowl? Vet Approved Facts & Tips

If you live in a multi-pet household and own both a cat and a dog, you may be wondering if these animals can share their water bowl. If your cat and dog choose to drink out of the same water...

Can Cats And Dogs Drink From the Same Water Bowl

Do Cats Like Snow? Vet-Verified Facts & Safety Tips

Cats are not known to be the biggest lovers of snow. Not all cats enjoy the cold, but some will since it mainly depends on the breed and individual preferences. Still, most house cats do not like the cold and...

A tuxedo cat in the snow

Are Bonsai Trees Poisonous to Cats? Vet-Reviewed Houseplants Examined

The unique and beautiful bonsai tree is grown to give the impression of being a full-sized, mature tree. The question of whether it is poisonous to cats isn’t easy to answer because a bonsai isn’t a species of tree. In...

Catster_Are Bonsai Trees Poisonous to Cats

Should I Leave a Light on For My Cat? Vet-Approved Care Facts

Cat owners want to do everything they can to ensure their cats are comfortable, safe, and happy. Knowing that cats get up and play, hunt, or just move around the house in the middle of the night, some owners wonder...

cat hiding in the dark

Nature’s Variety Instinct Cat Food Review of 2026: Recalls, Pros & Cons

Review Summary Nature’s Variety is the brand behind Instinct cat foods, available as wet canned food, dry kibble, and toppers. Its inspiration is knowing that raw diets have the potential to provide your cat with many different health benefits. It’s...

Instinct Cat Food Review

Vets Warn: Don’t Pick Cat Scabs – Try These 6 Natural Fixes

Noticing scabs on your cat can feel alarming, especially when those rough, flaky patches keep showing up. And if your poor kitty is itching, licking, or scratching nonstop, it’s even more stressful. The important thing to know is this: while...

Close up of a rash or Diagnosis of scabies or Dermatological diseases on the skin of the cat's ears

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.