7 Early Signs of Heart Disease in Dogs: What Every Dog Owner Must Know

7 Early Signs of Heart Disease in Dogs What Every Dog Owner Must Know

7 Early Signs of Heart Disease in Dogs & How to Protect Their Heart

Heart disease can silently affect your furry friend — often without obvious signs until it’s too late.

Maybe your dog’s been coughing at night or seems tired after short walks.
You might notice them struggling to breathe or acting a little dizzy sometimes.
It’s natural to worry when your furry friend shows these signs — you just want to keep them safe.
Many dog owners feel the same and wonder when to take action.

That’s why recognizing the early signs of heart disease is crucial.
In this article, we’ll walk you through 7 common symptoms to watch for — empowering you to take action before it’s too late.

1. Persistent Coughing

Does your dog cough often, especially at night? This could be a warning sign of heart problems.
If the cough worsens or includes phlegm, it’s time to visit your vet.

2. Getting Tired Easily After Exercise

If your dog seems exhausted after walks or playtime — more than usual — this might indicate heart issues.

3. Difficulty Breathing or Rapid Breaths

Labored or fast breathing that happens frequently is a red flag for heart disease.

4. Fainting or Dizziness

Irregular heartbeats can reduce oxygen flow, causing your dog to faint or feel dizzy.

5. Swollen Belly or Weight Gain

Fluid buildup in the abdomen, known as ascites, can cause swelling and signals worsening heart function.

6. Pale or Bluish Gums and Tongue

Changes in gum or tongue color can point to poor blood circulation related to heart disease.

7. Irregular Heartbeat

Notice if your dog’s heart beats too fast, too slow, or unevenly — this needs veterinary attention.

If you see any of these signs, don’t wait — consult your veterinarian promptly. Early detection saves lives.

Protect Your Dog’s Heart with These Supplements

Supplements containing Omega-3 fatty acids and Coenzyme Q10 have been shown to support heart health in dogs.
Including these in your dog’s diet can be a great preventive step.

Simple Lifestyle Tips for a Healthy Heart

  • Maintain regular, moderate exercise and a healthy weight
  • Schedule routine vet checkups for early health monitoring
  • Provide a stress-free, comfortable living environment

Your dog’s heart health matters. Start watching for these signs today and give your furry friend the care they deserve! ❤️


This article is for informational purposes only and does not replace professional veterinary advice.

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