Chronic pain in dogs is systematically underdetected because dogs mask suffering, requiring validated pain scoring tools and informed owner observation for accurate welfare assessment.
Chronic pain is one of the most significant and underaddressed welfare issues in companion animal medicine. Unlike acute pain, chronic pain does not produce dramatic signs - dogs simply withdraw, sleep more, play less, and seem 'a bit old.' These behavioral changes are often attributed to aging rather than pain. Owner education about chronic pain recognition and validated assessment tools enable earlier intervention. The welfare burden of undertreated chronic pain across the millions of arthritic and cancerous dogs is enormous.