Poorly managed cat introductions cause chronic stress for both resident and new cats, while welfare-positive protocols allow successful integration with minimal conflict.
Poorly managed cat introductions create welfare problems that can persist for the lifetime of the household. Cats that experience traumatic introductions may develop chronic stress-related conditions including feline idiopathic cystitis, over-grooming, and redirected aggression. The resident cat experiences territorial stress from the presence of an unfamiliar individual in its core territory. The new cat experiences the combined stress of a new environment and an unfamiliar cat. Welfare-positive introductions that use gradual protocols — separate spaces, scent exchange, visual introduction through a barrier, then supervised contact — allow both cats to adapt at their own pace without overwhelming stress. Patience in the introduction process pays dividends in long-term household welfare.