Cat Chronic Pain Behavioural Signs

Chronic pain in cats manifests through subtle behavioural changes that owners and vets must learn to recognise for effective welfare intervention.

Key Facts

Cats experiencing chronic pain commonly show reduced activity, altered grooming, and social withdrawal.
The validated Feline Musculoskeletal Pain Index (FMPI) assesses owner-reported activity changes.
Cats in pain may avoid high or low surfaces, hesitate at steps, or change sleeping location.
Facial action units assessed by the Feline Grimace Scale reflect acute but also some chronic pain.
Analgesic trials with NSAIDs are sometimes used diagnostically — improvement confirms painful condition.

Welfare Considerations

Chronic pain in cats is dramatically underdiagnosed because its signs are subtle and stoic. A cat that has stopped jumping onto the sofa may be arthritic, not simply "slowing down." Cats in chronic pain may be more withdrawn or irritable, groom less thoroughly (particularly the lower back and hindquarters that are difficult to reach with arthritic joints), and show reduced play interest. The welfare impact of unrecognised and untreated chronic pain is profound — ongoing discomfort reduces quality of life daily. Owner education, veterinary training in feline pain assessment, and availability of appropriate analgesia are all needed to close this welfare gap.

What You Can Do

Complete the Feline Musculoskeletal Pain Index for your senior cat and share results with your vet.
Video your cat's daily activities at home to detect subtle changes in movement and behaviour.
Never assume reduced activity in an older cat is normal ageing without ruling out pain.
Ask your vet about a diagnostic analgesic trial if chronic pain is suspected.