Domestic cats have complex behavioral needs that indoor-only environments frequently fail to meet, causing stress and behavioral problems.
Indoor cats deprived of environmental enrichment develop stress-related conditions including urinary tract problems, overgrooming, and aggression. Multi-cat households frequently have resource competition that owners do not recognize as stress. The indoor cat environment often fails to provide adequate territory, escape routes, hunting simulation, and social spacing. Behavioral problems in cats are almost always welfare problems with environmental solutions.