Why do cats purr when they are not content?

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A Maine Coon longhair cat with cream and white fur sits beside a tabby shorthair cat in a garden with green foliage in the background. — cat Two kinds of domestic cats.

While it is a common misconception that purring is exclusively a sign of happiness, cats also purr when they are frightened, in pain, or sick.1

In these less comfortable circumstances, experts believe that cats may purr as a self-soothing mechanism, similar to how humans might hum to calm themselves during stressful situations. This behavior suggests that the vocalization serves a broader purpose than just expressing contentment; it acts as a coping strategy to help the animal manage distress or discomfort.1

Are you interested in learning more about other forms of animal communication?