
The Feline Grimace Scale: A Simple Way to Tell If Your Cat Is in Pain
By Johanna
Published April 2, 2026
Cats don’t show pain the way we expect. No limping, no crying — often just small, easy-to-miss changes. That’s why researchers at the University of Montreal developed the Feline Grimace Scale (FGS) — a practical, science-backed way to spot pain just by looking at your cat’s face. What is the Feline Grimace Scale? The Feline Grimace Scale (FGS) is a validated tool used to assess acute pain in cats based on facial expressions. It works by observing small, measurable changes in a cat’s face — thing
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