Assessing chronic pain and quality of life in dogs requires validated, systematic tools that go beyond owner intuition to identify hidden welfare compromise.
The welfare challenge of chronic pain in dogs lies in its invisibility: dogs do not reliably vocalise or limp when pain is chronic rather than acute. Instead, signs are subtle — reduced activity, reluctance to climb stairs, altered sleep patterns, reduced interaction with owners. These are easily attributed to "getting old" rather than treatable pain. Validated quality-of-life tools including the HHHHHMM scale, VetMetrica, and the newly developed Dog QoL framework provide structured approaches that identify welfare problems owners miss in unstructured assessment. Veterinary consultations should include systematic pain assessment at all senior dog visits rather than relying on owner-initiated reporting. Treatment response monitoring using the same tools before and after analgesia initiation demonstrates welfare benefit and guides dose adjustment.