Why Do Cats Purr?

Behavior & Training 📅 August 9, 2026 👁 4694

📝 Summary

When a cat feels comfortable and safe, it trusts you - or you have done something it likes, such as petting it, feeding it, or cleaning the litter - and it purrs to show happiness and ease. Here are more situations in which cats purr, shared by our pet experts.

1 When Cats Purr

I. Times cats purr

Cats purr when happy – tasty food, playing with the owner, being petted by a loved one, and so on.

II. Why a cat’s purr can be so loud

1. When a cat sleeps by your side or is very close to you, you often hear a steady snoring sound. Most think it is sleep snoring, but it is actually the false vocal cords vibrating. The false cords sit at the back of the cat’s throat; stroke the neck and you can feel the vibration when it purrs.

2. The purr is the throat resonating as the false cords vibrate. A purring cat is not actually asleep – it does not snore while playing, stressed, or truly sleeping.

3. Only when content, or relaxed in the owner’s arms, does a cat give a light, cheerful purr. Adult cats and Persians do this more; kittens rarely purr.

4. Persians snore because of their short nasal passages, and they are also prone to respiratory and eye disease for the same reason.

5. Also, if a kitten or adult cat purrs nonstop in any situation, it may have a respiratory infection and needs a vet check.

Tip: A loud, constant purr in a flat-faced breed is often normal, but sudden nonstop purring with other signs needs a check.

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