Recognising Chronic Pain in Dogs

Chronic pain in dogs is frequently unrecognised because dogs adapt their behaviour to mask persistent discomfort, making proactive monitoring using validated tools essential for adequate welfare management.

Key Facts

Chronic pain is estimated to affect 20-30% of all dogs at any given time, with osteoarthritis, dental disease, and spinal pain among the most common causes
Dogs adapt to chronic pain by reducing activity, avoiding painful movements, and maintaining social engagement — masking the severity of their discomfort
The Glasgow Composite Measure Pain Scale and Canine Brief Pain Inventory are validated tools for systematic chronic pain assessment
Owner-reported changes in behaviour — reluctance to climb stairs, reduced play, slower rising — are among the most sensitive early pain indicators
Analgesic trials — temporary pain medication trials — can confirm suspected chronic pain when diagnostic results are inconclusive
Multiple pain sources are common; addressing only one source while missing others results in incomplete welfare improvement
Quality of life improvements following treatment of chronic pain are often dramatic, revealing retrospectively how much the animal was suffering

Welfare Considerations

Chronic pain recognition in dogs requires deliberate effort because the behavioural adaptations dogs make to persistent pain — reducing activity, avoiding movements that hurt, suppressing vocalisation — mimic normal ageing or personality changes that owners may not associate with pain. A dog that "slowed down" as it aged may in fact be managing significant chronic pain from osteoarthritis, dental disease, or spinal pathology. The welfare stakes are high: chronic untreated pain reduces quality of life across every dimension and may persist for months or years before recognition. Systematic monitoring using validated pain scales at regular veterinary visits, combined with structured owner questionnaires about activity, sleep, social behaviour, and grooming, captures the behavioural information needed for early identification. When chronic pain is suspected but not confirmed diagnostically, a structured analgesic trial provides diagnostic and therapeutic value simultaneously — a dog that becomes noticeably more active and engaged following pain medication has revealed retrospectively that pain was limiting their quality of life. This revelation should prompt investigation of the pain source rather than indefinite symptomatic treatment.

What You Can Do

Monitor your dog against their own baseline behaviour rather than assuming reduced activity is normal ageing
Ask your veterinarian to use validated chronic pain assessment tools at annual check-ups
Consider a structured analgesic trial if chronic pain is suspected but diagnostically unclear
Treat multiple simultaneous pain sources — dental disease, joint disease, and spinal pain can co-exist and each requires management