FLUTD encompasses multiple conditions causing urinary pain and dysfunction in cats. Stress is a major driver of idiopathic cases, linking environmental welfare to physical health.
Feline Idiopathic Cystitis provides a compelling illustration of the bidirectional connection between environmental welfare and physical health. FIC is not an infection or a stone — it is inflammation driven by stress, affecting cats whose nervous systems are sensitized to environmental stressors. Triggers include multi-cat conflict, changes in routine, owner stress, and lack of environmental enrichment. The welfare implications are dual: the underlying environmental welfare deficit causes the condition, and the resulting urinary pain and dysfunction causes additional suffering. Treatment and prevention are essentially the same: improve environmental welfare through enrichment, reduce social conflict, provide adequate resources, and implement stress-reduction strategies. This makes FIC a welfare-health bridge condition where improving cat welfare directly improves physical health outcomes.