Multi-Cat Introduction Guide

How to introduce a new kitten to your existing cat or dog.

Siberian Cat | Fuluck Cattery, Osaka

4 min read | Text updated: February 2026

Benefits of Multi-Cat Households

A shared space with separate toys for each kitten (AI illustration)
A shared space with separate toys for each kittenAI illustration
  • They become playmates, reducing boredom and stress
  • Less loneliness when home alone
  • Better socialization, leading to calmer personalities
  • The existing cat serves as a role model for learning habits

Siberians Are Great for Multi-Cat Homes

Different preferences for sheltering and exploring (AI illustration)
Different preferences for sheltering and exploringAI illustration
  • Gentle and sociable personality
  • Experience living with siblings and parent cats; skilled at cat-to-cat communication
  • High adaptability to new environments
  • Less likely to intimidate resident cats

Introduction Timeline

Two-panel AI illustration of a tabby and white cat sniffing cloths in separate rooms
Learn the scent before meetingAI illustration
  1. Days 1-3: Separate room or cage only. Let them sense each other's scent.
  2. Days 4-7: Swap towels to get used to each other's scent.
  3. 1-2 weeks: Meet through cage or barrier. Hissing is OK.
  4. Getting comfortable: Short supervised time in the same room.
  5. Settled: Let them roam freely.

Tips for Success

Providing separate litter, feeding and resting areas (AI illustration)
Providing separate litter, feeding and resting areasAI illustration
  • Litter boxes: "number of cats + 1" is the rule
  • Separate food and water for each
  • Provide multiple high spots and hiding places
  • No need to force friendship at first
  • Prioritize caring for the resident cat (prevents jealousy)
  • Continue scent swapping daily

Signs Things Are Going Well

Observing relaxed rest in separate spots (AI illustration)
Observing relaxed rest in separate spotsAI illustration
  • Relaxing in the same room together
  • Mutual grooming
  • Playful chasing (non-aggressive)
  • Able to ignore each other (surprisingly important)