What are the signs of a bad heart in dogs?

There’s nothing quite like watching your dog bound around the backyard or chase a ball with endless energy. But when that spark starts to fade, it’s natural to worry. A failing heart can silently rob your furry friend of their vitality, and recognizing the early signs could make all the difference. Knowing what to look for isn’t just about peace of mind—it’s about giving your dog the best shot at a long, healthy life.

One of the most common red flags is a sudden drop in activity level. If your usually hyperactive pup suddenly avoids walks, refuses to play fetch, or seems winded after minimal exertion, it could signal heart trouble. Think about it: would your dog normally pass up a chance at their favorite game? That change in enthusiasm might be their way of telling you something’s wrong.

Persistent coughing is another telltale sign. Unlike a quick hack from inhaling something wrong, a heart-related cough is often dry, harsh, and occurs especially at night or after exercise. It happens because fluid can build up in the lungs when the heart isn’t pumping efficiently. If your dog’s cough doesn’t improve with home remedies or seems to be getting worse, it’s time to schedule a vet visit.

Keep an eye on your dog’s breathing patterns, too. Rapid, labored breaths when resting—you know, that panting that doesn’t stop even when they’re lying down—could mean their heart isn’t circulating oxygen properly. Some dogs may even start breathing with their elbows pointed out to make room for their struggling lungs. Remember, changes in breathing should never be ignored, as many local regulations require pet owners to ensure their animals receive proper medical care.

Weight loss despite a normal appetite can also indicate heart problems. When the heart weakens, it can’t supply enough blood to the digestive system, making it harder for your dog to absorb nutrients. So, if your dog is eating as much as ever but still losing pounds, it’s a clear sign that something deeper is going on inside.

Swelling in the abdomen or legs is another critical sign. When the heart fails to pump blood effectively, fluid can accumulate in the body’s tissues. You might notice your dog’s belly looking unusually bloated or their legs appearing puffy. While it could be due to other conditions, it’s essential to get a professional diagnosis to rule out heart disease.

In the world of pet care, being proactive is key. Regular vet check-ups with heart screenings can catch issues early, long before symptoms become severe. And if you do notice any of these signs, don’t panic—reach out to your vet immediately. They’ll guide you through the next steps, whether it’s running tests, starting medication, or adjusting your dog’s lifestyle. Your dog depends on you to be their advocate, and staying vigilant is the best way to keep them happy and healthy for years to come.