Innocent Heart Murmurs in Kittens | August Maine Coons

🐾 Understanding Innocent Heart Murmurs in Kittens

What Every Kitten Owner Should Know

Bringing home a new kitten is exciting—and sometimes a veterinary visit may include mention of a heart murmur. While that can sound alarming, many murmurs in kittens are completely harmless.

💜 What Is a Heart Murmur?

A heart murmur is simply a sound your veterinarian may hear when listening to your kitten’s heart.
It does not automatically mean there is a heart problem.

✨ What Is an “Innocent” Murmur?

In young, growing kittens, it’s very common to hear what’s called an innocent (physiologic) murmur.

These murmurs:

  • Are common during growth phases
  • Are typically low-grade
  • Often resolve on their own
  • Do not affect your kitten’s health or lifestyle

👂 Why Murmurs Aren’t Always Clear-Cut

Kittens have tiny, fast-beating hearts—and that can make exams tricky.

Things that can affect what a vet hears:

  • Purring (this can mimic or hide sounds)
  • Stress or excitement
  • Fast heart rate
  • Small body size
  • Position during the exam

Because of this, it’s not unusual for:

  • A murmur to be heard at one visit and not the next
  • Different vets to hear slightly different things

🩺 What Should You Do If a Murmur Is Mentioned?

First—don’t panic 💜

Instead, take a simple, calm approach:

  • Ask your vet about the grade of the murmur
  • Schedule a follow-up exam
  • Monitor your kitten’s:
    • Energy level
    • Appetite
    • Growth and development
  • If recommended, consider an echocardiogram (heart ultrasound) for confirmation

🐱 Our Commitment to Heart Health

At August Maine Coons, we prioritize health in every aspect of our program:

  • Breeding cats are screened for HCM (Hypertrophic Cardiomyopathy)
  • We focus on strong, healthy lines and excellent temperament
  • Kittens are monitored closely throughout development

💡 The Bottom Line

  • Many kitten murmurs are innocent and temporary
  • A murmur does not mean your kitten is unhealthy
  • Follow-up care and monitoring are the best next steps

💜 We’re Always Here to Help

We’re committed to supporting our families long after your kitten goes home.

If you ever have questions, concerns, or just need reassurance—please reach out.

August Maine Coons
🌐 https://augustmainecoons.com

FAQ Regarding Heart Murmurs

Are heart murmurs common in kittens?
Yes, many kittens develop innocent murmurs during growth that resolve on their own.

Should I worry if my kitten has a heart murmur?
Not always. Many murmurs are harmless, but follow-up with your veterinarian is recommended.

Do Maine Coons get heart disease?
Maine Coons can be prone to HCM, which is why responsible breeders screen their cats.

Will an innocent heart murmur in kittens go away?
In many cases, yes—especially as the kitten matures.

As a CFA & TICA registered Maine Coon breeder located just outside Kansas City, Kansas, we prioritize health testing, temperament, and ongoing support for our families.

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