FLUTD encompasses a spectrum of conditions causing urinary discomfort in cats. Idiopathic cystitis — linked to stress — represents a major welfare challenge in indoor cat populations.
Feline idiopathic cystitis is a stress-related condition that powerfully illustrates the connection between psychological welfare and physical health. Cats experiencing chronic environmental stress are substantially more likely to develop FIC; acute stressors can trigger episodes in susceptible individuals. Treatment addresses both the acute episode — pain management, increased hydration, stress reduction — and the underlying welfare state creating vulnerability. Multimodal environmental modification includes providing adequate resources (litter boxes, feeding stations, resting places), reducing inter-cat tension, improving environmental complexity, and ensuring predictable positive owner interactions. Dietary management with wet food and increased water availability reduces urinary concentration and recurrence risk. The condition serves as a useful diagnostic signal: repeated FIC episodes indicate chronic stress requiring investigation of the cat's living environment and social circumstances.