Pet Health

Why Do Cats Purr?

Discover the reasons behind why cats purr! From expressing contentment to healing benefits, learn what this soothing sound means for our feline friends.
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Calico cat curled up peacefully, purring contentedly while enjoying a sunny afternoon on the windowsill.

Video Call an Aussie Vet now for just $49 AUD

Dial A Vet is available in Australia, NZ, Canada, United States & Canada!
Speak to A Vet Now

Few sounds are as soothing as the gentle purring of a content cat. But if you’ve ever wondered why cats purr—and whether it’s always a sign of happiness—you’re not alone. Cats purr for many reasons, and understanding this behavior can help you connect with your feline friend and ensure their well-being.

🧠 Why This Happens

At its core, purring is a unique sound cats make by rapidly contracting and relaxing the muscles in their larynx (voice box) while they breathe in and out. This creates a rhythmic vibration that we recognize as a purr. But why do they do it?

Most commonly, cats purr when they’re feeling relaxed, safe, and happy—like when they’re curled up on your lap or enjoying a gentle chin scratch. However, cats also purr in other situations, some of which may surprise you:

  • When they’re hungry or seeking attention
  • During stressful situations, like a vet visit
  • When they’re injured or in pain
  • While giving birth or comforting their kittens

This range of reasons shows that purring isn’t just a sign of contentment—it’s also a form of communication and a potential self-soothing mechanism.

❗ How to Help

If your cat’s purring seems unusual or happens in unexpected contexts, it’s essential to pay attention to their body language and overall behavior. Here are some clues to help you interpret what their purring might mean:

  • Relaxed, slow blinks, and soft posture: Your cat is happy and at ease.
  • Persistent meowing with purring: They may be hungry or trying to get your attention.
  • Crouched posture or hiding: This could indicate stress or discomfort.
  • Purring during illness or injury: They might be trying to soothe themselves or heal.

Understanding these signs can help you respond appropriately to your cat’s needs, whether it’s offering comfort, food, or veterinary care.

✅ Behavioural Solutions

If your cat is purring excessively or in concerning situations, consider these steps to address their needs:

  • Provide a safe, quiet space where they can relax if they seem stressed.
  • Maintain a consistent feeding schedule to prevent hunger-related purring.
  • Offer enrichment activities like toys, scratching posts, or window perches to keep them mentally stimulated.
  • Keep an eye out for signs of pain or illness, such as limping, vomiting, or changes in appetite.

For cats that seem to purr when they’re unwell, it’s important to monitor them closely. If you suspect something is wrong, don’t wait—seek professional advice promptly.

💡 When to Get Support

While purring is often normal and healthy, there are times when it’s best to consult a vet. Reach out to your veterinarian if:

  • Your cat is purring alongside other signs of illness, such as lethargy, vomiting, or loss of appetite.
  • The purring is accompanied by unusual behavior, like hiding, aggression, or excessive grooming.
  • They’ve recently experienced an injury or trauma, and you’re unsure if they’re in pain.

According to VCA Animal Hospitals, cats are masters at hiding discomfort, so subtle cues like purring in unusual circumstances shouldn’t be ignored (source).

When in doubt, a quick consultation with a veterinarian can provide clarity and peace of mind.

FAQs

Q: Is purring always a sign that my cat is happy?
A: No, while cats often purr when they’re content, they can also purr when they’re stressed, in pain, or seeking attention. Pay attention to their body language and other behaviors for context.

Q: Why does my cat purr when they’re hurt?
A: Purring may help cats self-soothe or even promote healing. If you notice this behavior, monitor your cat for other signs of injury or illness and consult a vet if needed.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
Speak to A Vet Now

🐾 You Might Also Like

📈 Popular Pet Topics Right Now