Dog bites cause millions of injuries annually, many involving children. Understanding the welfare context of biting — dogs bite when they feel unsafe or threatened — enables prevention strategies that protect both humans and dogs.
Dog bites are overwhelmingly a welfare failure — the dog has communicated discomfort through body language and signals that have not been recognised or responded to, escalating to biting as a last resort. From the dog's perspective, biting is a communication of distress, pain, or fear. Dogs that bite are not being "aggressive" in a morally culpable sense; they are using the most effective means available to them to change an intolerable situation. Prevention focuses on teaching humans — especially children — to read dog body language accurately, to respect dogs' communication of discomfort, and to create interactions where dogs have the choice to disengage. Dogs that are never cornered, forced into unwanted contact, or exposed to pain without warning very rarely bite.