Cats also purr when in pain or stressed
#0050 Animals & plants
Fact rank
B
Purring when distressed is confirmed in a conference abstract (primary) and expert explanations (secondary), but the "why" cannot be supported, so B
Wow rank
A
An exception to the belief that purring always means happiness
Usefulness
B
A reminder not to miss illness just because a cat is purring
Verification: Supported by evidence
AI verification reports the evidence it found; it does not guarantee that a claim is true.
Cats purr not only when content but sometimes also when in pain or stressed, such as at the vet or when badly injured.
Why
Why cats purr when distressed is not known. One hypothesis is that it helps them calm themselves.Evidence
Secondary Explanation by Cats Protection, a UK cat charity. Cats sometimes purr in stressful situations such as going to the vet, and when in pain link
Primary von Muggenthaler (2001, conference abstract, Acoustical Society of America). Cats purr when severely injured or frightened; all 44 felids recorded produced strong frequencies between 25 and 150 Hz link
Primary Abstract of Herbst et al. (2023, Current Biology). Larynges removed from eight cats oscillated at typical purring rates without nerve or muscle input link
Notes and limits
The idea that low purring frequencies help bones heal comes from a 2001 conference abstract that only noted matching frequencies; no experiment has shown cat bones healing faster (possibly a myth). Research suggests that tissue pads in the vocal folds, as well as throat muscles, are involved in producing the sound. English Wikipedia's "Purr" also notes purring in pain.
Derivations
Derived from: 猫がおなかを見せて転がっても触ってほしいとは限らない
Derived facts: —