How to Introduce a New Kitten to Your Dog or Cat

Slow is fast

Many families bringing home a kitten already share their house with a dog or an older cat. Done calmly, introductions go well, and breeds such as British Shorthairs are often tolerant. I'm Tamira at TMZ Kittenz N Katz, and this is the plan I suggest to every new family.

Step 1: Give the kitten its own room

Start with a separate room that has a litter box, food, water, a bed and toys. This gives the kitten a safe base and keeps first contact calm. Keep the door closed for the first few days and let everyone get used to the sounds and smells.

Step 2: Swap scents

Rub a clean sock or blanket on the kitten and leave it near your resident pet's bed, and do the reverse. Feed on opposite sides of the closed door so each pet links the other's smell with food. Do this for a few days until nobody seems worried.

Step 3: See each other without touching

Use a baby gate or a door cracked open with a stopper. Reward calm behavior with treats and praise. Keep sessions short, and end them while everyone is still relaxed. If either pet hisses, growls or stares, go back a step.

Step 4: Supervised meetings

Let them share a room while you watch. With a dog, keep the dog on a leash at first and ask for a sit or down. With a cat, offer plenty of places to climb and hide, and put out extra litter boxes and bowls. Play with both so they associate each other with good things.

Signs that it is going well

Relaxed bodies, curious sniffing, play-bowing and the occasional soft swat are good signs. Warning signs include flattened ears, arched backs, prolonged staring, chasing the kitten and hiding for many hours. Pause and slow down if you see these.

Breed notes

British Shorthairs are usually calm around children and can get along well with cat-friendly dogs. Scottish Folds and Straights are sociable and often do well with a companion. Munchkins are playful and enjoy company. Every animal is an individual, so go at your pet's speed.

Never leave them alone together at first

Wait until you are sure of their relationship before leaving them unsupervised. A kitten is small and can be hurt by an excited dog or an annoyed adult cat. Keep the kitten's litter box and food out of the dog's reach.

Setting up the home for two pets

Provide one more litter box than the number of cats, separate food and water stations, and vertical places such as cat trees or shelves where the cat can retreat from a dog. Give each pet its own resting spot and quiet time away from the other.

How long will it take?

Some pets accept a kitten in days, others take weeks or months. Don't rush. Keep each step going until both animals are calm, and never force contact. Patience now leads to a lasting friendship.

Introducing a kitten to children

Kittens are fragile. Teach children to sit down and let the kitten come to them, pet gently and wash their hands afterwards. Supervise all play. Children older than a certain age can help with feeding and play, which builds a bond.

When to ask for help

If a dog stalks or snaps at the kitten, or a cat attacks and does not stop, separate them and speak to your veterinarian or a qualified behaviorist. Most issues improve with a slower approach, but safety comes first.

Setting a routine for both pets

Pets feel safer when their day is predictable. Feed your resident pet first and on the usual schedule so it does not feel pushed aside by the newcomer. Keep walks, play times and favorite sleeping spots the same, and give your older pet one-on-one attention every day without the kitten around. A pet that feels secure is far more likely to accept a new housemate.

Think about who gets which resources. Cats like to eat, drink and use the litter box in separate places, and many do not want to share. Provide more than one of each, set far apart, until you see how your pets get along.

What if my older cat hisses at the kitten?

Hissing, growling and swatting are normal ways for a cat to say "give me space." They are not always a sign that things are going badly. A single hiss followed by retreat is a boundary being set. What matters is whether the behavior fades over days. Let your cat walk away when it wants to, and never punish it for hissing, which can make it more fearful.

If your older cat refuses to eat, hides for days or tries to attack the kitten, slow down and go back to scent swapping through a closed door. Ask your veterinarian for advice if the stress continues.

Keeping the kitten safe around dogs

Even friendly dogs can hurt a tiny kitten during rough play. Until you know your dog is gentle, keep the leash on, reward calm behavior and stop any chasing right away. Teach your dog "leave it" and "settle" before the kitten comes home. Give the kitten high places to escape to, such as a tall cat tree or a shelf, because dogs cannot follow there.

Need advice?

I'm happy to talk through your situation before your kitten comes home. Contact us, read our FAQ or see the Kittens page.