Litter tray design, cleanliness, placement, and substrate choice significantly affect cat welfare and are common root causes of house soiling and stress-related urinary problems.
Litter box management has outsized welfare importance in multi-cat households. Cats that feel unable to eliminate comfortably — because trays are dirty, poorly located, covered, or contested by other cats — develop chronic stress that manifests as inappropriate elimination, house soiling conflict, and urinary disease. Feline idiopathic cystitis is directly triggered by stress in many cases, and inadequate litter provision is a major stressor in indoor cats. The welfare consequences cascade: owners respond with punishment, the human-cat relationship deteriorates, and cats may ultimately be surrendered. The practical solution — more trays, better placement, regular cleaning, and correct substrate — is low-cost and highly effective. Veterinarians who identify litter management as a root cause and provide specific guidance prevent significant suffering.