Cat Pain Scale Development and Use

Validated pain scales for cats enable more objective assessment of feline pain, improving recognition and treatment in clinical and home settings.

Key Facts

Cats are highly effective at masking pain as a survival strategy
The Glasgow Feline Composite Measure Pain Scale is validated for acute pain assessment
The Feline Grimace Scale uses facial expressions (eye squinting, ear position, muzzle tension) to score pain
Owners trained to use the Feline Grimace Scale detect pain more accurately than untrained observers
Chronic pain in cats often manifests as behavioral changes rather than overt pain signs
The Colorado State University Feline Acute Pain Scale provides a clinical framework
Pain assessment should occur at rest and during gentle palpation for full picture
Multi-modal pain management using drugs with different mechanisms provides better control

Welfare Considerations

The development of validated feline pain scales represents a significant advance in cat welfare. Previously, pain assessment in cats relied entirely on subjective clinical judgment, resulting in systematic undertreatment. Cats in pain after surgery, injury, or with chronic disease received inadequate analgesia because pain was not recognized. The Feline Grimace Scale is particularly valuable because it can be used by trained owners for home monitoring between veterinary visits. Widespread adoption of pain scales in veterinary practice has improved analgesia standards, but owner education about pain recognition remains a critical welfare gap.

What You Can Do

Learn to use the Feline Grimace Scale for home pain monitoring of your cat
Take videos of your cat at home to show your vet - cats often mask pain at the clinic
Advocate for your cat's pain management needs at veterinary visits
Monitor appetite, grooming, litter box use, and play as pain indicators
Complete post-operative pain monitoring charts provided by your veterinarian