How to Introduce a New Kitten to Your Dog or Cat

A new kitten is exciting for you, but it can be stressful for the pets already in your home. A slow, planned introduction prevents fights and builds lasting friendships. This is the method I give every family that adopts from Siberian Legacy Cats.

Principle one: slow is fast

Cats are territorial. A rushed meeting can create months of tension, while a patient one creates friends. Plan for at least a week, and sometimes two or three.

Step 1: separate rooms

Keep the kitten in its own sanctuary room with food, water, a litter box and toys. Your resident pets should have their usual space. Keep routines normal for the older pets, and give them extra attention.

Step 2: swap scents

Before they see each other, they should smell each other. Rub a soft cloth on each animal's cheeks, and place it near the other's bowl. Swap blankets or beds. Reward calm reactions with treats.

Step 3: meet under the door

Feed both pets on either side of a closed door. Move the bowls closer each day. Once they eat calmly, let them sniff under the door, or use a baby gate or a cracked door.

Step 4: short supervised visits

Open the door with a gate or a screen, and let them see each other for a few minutes. Keep a toy or wand ready for distraction. End the visit before tension builds, and repeat daily.

Step 5: free time together

When both cats are relaxed, allow them to share a room, always supervised. Provide plenty of resources: one more litter box than the number of cats, several water points, and high perches for escape.

Introducing a kitten to a dog

• Make sure the dog knows basic commands such as sit and stay.
• Keep the dog on a leash for early meetings.
• Let the kitten approach on its own, and never hold it toward the dog.
• Give the kitten a high safe spot the dog cannot reach.
• Never leave them alone until you trust them.

Siberians are confident, sociable cats, and many get along very well with friendly dogs. Our kittens are used to household noise.

Normal vs worrying behaviour

Normal: sniffing, hissing, a puffed tail, avoiding each other, and short play-fighting.

Worrying: constant chasing, screaming, fighting that draws blood, or a cat that stops eating or using the litter box. If you see these, go back a step and contact your vet.

Things that help

• Plenty of vertical space, such as a tall cat tree
• Feeding at the same times, in separate bowls
• Daily play with each pet
• Synthetic calming pheromone diffusers
• Patience, and treats for good behaviour

What if my cat ignores the kitten?

That is fine, and often a good sign. Some adult cats accept a kitten quickly, while others stay aloof for weeks. Keep encouraging calm contact.

Consider two kittens

Many families adopt two kittens together, so they have a built-in friend. Tell me when you join the waitlist, and I will see what the litter allows.

When to ask for help

I am here for you for the life of your cat. If introductions are not going well, contact us. See also our family pet guide.