Aggression in dogs is frequently misunderstood and mismanaged, with welfare implications for both the affected dog and people and animals around them.
Aggressive dogs are among the most welfare-compromised companion animals because their behavior puts them at risk of relinquishment or euthanasia while the underlying cause - typically fear or pain - continues to cause suffering. Fear-based aggression reflects an animal in chronic anxiety, and without appropriate behavioral intervention, the dog's quality of life is severely compromised. The welfare impact extends to family members who live with an unpredictable animal and to the dog who cannot form secure, rewarding relationships. Punishment-based management of aggression is particularly welfare-harmful because it addresses the symptom while worsening the underlying emotional state, increasing fear and the risk of more severe aggressive responses.