Keep the kitten in a separate room at first
Let both cats get used to each other’s scent by swapping bedding
Feed them on opposite sides of a closed door
Allow brief visual introductions through a baby gate or cracked door
Watch for calm behavior before increasing contact time
Let the kitten explore the home while the resident cat is elsewhere
Supervise all face-to-face meetings
Keep early interactions short and positive
Provide separate litter boxes, food bowls, and resting areas
Use toys or treats to create positive associations
Separate them if either cat shows aggression or extreme fear
Increase together time gradually over several days or weeks
Never force interaction
Give the resident cat extra attention and routine
Consult a veterinarian if either cat becomes stressed or injured