Territorial marking in cats is a natural communication behavior that, when it becomes problematic in homes, signals underlying stress or medical issues requiring attention.
When cats mark inappropriately in homes, the behavior is often interpreted as spite or mischief — but it almost always signals stress, anxiety, or medical discomfort. Cats who spray are communicating insecurity about their territorial status or physical wellbeing. Punishing marking cats worsens their anxiety and escalates the problem. A welfare-centered approach involves identifying and addressing the root cause: introducing resources to reduce competition in multi-cat homes, providing adequate vertical space, ensuring each cat has private areas, investigating medical causes with a veterinarian, and using synthetic pheromone products to reduce anxiety. Neutering before sexual maturity prevents most hormonally-driven marking.