Cat Pain Assessment Tools and Clinical Practice

Feline pain is chronically underrecognised and undertreated in veterinary practice, and validated pain assessment tools are transforming clinical care.

Key Facts

Cats mask pain behaviourally — reduced activity is often the only sign owners notice
The Glasgow Composite Measure Pain Scale (feline) provides validated acute pain assessment
The Feline Grimace Scale identifies pain through facial action units including ear and whisker position
Chronic pain in cats is assessed through behavioural questionnaires completed by owners at home
Studies show cats receive significantly less analgesic treatment than dogs for equivalent procedures

Welfare Considerations

Feline pain undertreatment represents one of the most pervasive welfare failures in companion animal medicine. Cats evolved to hide pain as a survival strategy, and this instinct persists even in severe disease. Veterinary training has historically emphasised post-operative cat pain less than dog pain, despite equivalent tissue trauma. The Feline Grimace Scale — which detects pain from photos using facial muscle action units — enables non-invasive pain assessment. Owner-completed chronic pain questionnaires like the FNI-28 bring the cat's home behaviour into clinical assessment. Systematic pain assessment improves treatment rates and welfare outcomes.

What You Can Do

Ask your vet about pain scoring protocols before and after any procedure
Learn the Feline Grimace Scale to assess your cat's pain level at home
Complete owner pain questionnaires offered by your vet honestly and thoroughly
Advocate for equal pain management standards for cats and dogs in veterinary practice