Cats are not inherently social, and multi-cat households are a common source of chronic feline stress. Understanding cat social structure prevents welfare problems from well-intentioned additions.
Multi-cat households are one of the most common sources of chronic, unrecognized feline stress. Owners who acquire additional cats believing their existing cat wants company may inadvertently create a situation of persistent territorial conflict that neither cat can escape. The welfare cost falls disproportionately on subordinate cats who cannot control access to resources and live in a state of chronic anxiety. Feline idiopathic cystitis — a painful stress-related urological condition — is significantly more prevalent in multi-cat households with inadequate spatial resources. The welfare solution is not simply to separate cats but to design the shared environment to eliminate resource competition through spatial redundancy: multiple separate litter boxes, feeding stations, resting areas, and elevated spaces that allow cats to establish non-overlapping use patterns.