Multi-cat households present significant welfare challenges as cats are primarily solitary animals forced into proximity. Evidence-based management reduces social stress for cats living with conspecifics.
Multi-cat household welfare failures are extremely common and frequently misunderstood. The cat who is "being mean" to the resident cat, the litter box avoidance, the over-grooming, the hiding — these behavioral signs are often dismissed as personality problems rather than recognized as welfare signals from animals experiencing chronic social stress. Cats in households where they cannot avoid social conflict or resource competition live in persistent low-grade stress that suppresses immune function, disrupts normal behavior, and reduces quality of life. The welfare solution requires adequate resources (multiple litter boxes, feeding stations, water points, resting areas, vertical space), appropriate physical space, and management that prevents unavoidable confrontation. For some combinations of cats, no management intervention is sufficient — welfare sometimes requires rehoming one individual to eliminate chronic conflict.