Cats are solitary hunters with strong territorial instincts. Multi-cat households frequently cause chronic stress through resource competition and social conflict that owners may not recognise.
Multi-cat households are a major source of chronic stress in companion cat populations. Because cats are not naturally social in the way dogs are, coexistence with other cats requires careful management of space and resources. Cats that cannot establish stable territories within a home, or that are regularly exposed to cats they perceive as threats, experience persistent low-grade stress. This manifests in varied ways: inappropriate urination, over-grooming, reduced appetite, and withdrawn behaviour are all stress signals that owners often misattribute to individual personality. Feline Idiopathic Cystitis — painful inflammation of the bladder — is strongly linked to chronic stress and is a common consequence of poorly managed multi-cat households. Environmental management — adequate resources, escape routes, and separate core territories — can dramatically reduce conflict and stress.