Chronic low-grade conflict between cats in multi-cat households is one of the most common yet underrecognised sources of stress and compromised welfare in companion cats.
Multicat aggression causes chronic welfare compromise that is frequently invisible to owners. Unlike overt fighting, the most damaging intercat conflict often consists of subtle intimidation: one cat monopolising a food bowl, blocking access to resting areas, or using sustained staring to displace a housemate. The subordinate cat lives in a state of chronic low-level fear that elevates cortisol, suppresses immune function, and predisposes to stress-related illness. Resource distribution is the primary management tool: multiple feeding stations, water points, litter areas, and high perches distributed throughout the home reduce competition. In some cases, rehoming one cat represents the most welfare-positive option.