Feline lower urinary tract disease (FLUTD) encompasses a range of painful conditions affecting cat bladders and urethras — stress, diet, and environment are key welfare-relevant factors.
FLUTD causes significant acute suffering — the straining of a cat attempting to pass a small amount of urine, or the pain of bladder inflammation, is clearly distressing. Urethral obstruction causes an emergency that progresses from extreme discomfort to toxin-induced collapse. The welfare significance of the environmental and stress component of FIC is particularly important: indoor cats in small spaces, in multi-cat households with poor resource distribution, or experiencing environmental upheaval are at substantially higher risk. Addressing these root causes — through environmental enrichment, litter tray provision, hiding spaces, and careful multi-cat management — is both more effective and more welfare-positive than repeated medical treatment alone.