Leash reactivity and aggression toward other dogs or people is one of the most common behavioral problems, causing significant welfare impacts and social restriction for affected dogs.
Reactive dogs experience genuine emotional distress during episodes, whether driven by fear, frustration, or both. The cycle of reactivity - exposure to trigger, intense emotional arousal, explosive behavior, brief relief - is exhausting and emotionally aversive for the dog. The welfare impact extends beyond episodes themselves: reactive dogs are typically restricted in where they can walk, when they can exercise, and who can care for them. Many are surrendered to shelters when owners cannot manage the behavior. Early intervention with qualified behavioral support significantly improves welfare outcomes and prevents escalation that makes rehabilitation more difficult.