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How to tell if your dog has heart disease?

You might notice your usually energetic pup slowing down on walks lately—stopping to catch their breath even before reaching the park bench.

You might notice your usually energetic pup slowing down on walks lately—stopping to catch their breath even before reaching the park bench. That subtle shift in stamina is one of the first signs to watch for, especially in breeds like Cocker Spaniels or Doberman Pinschers, which are more prone to certain heart conditions. Pay attention if they lag behind on your usual neighborhood route or seem tired after just a short play session; these aren’t always just signs of aging.

Another red flag is persistent coughing, especially at night or after your dog lies down. Unlike a cough from a cold, this one might sound wet or like your dog is struggling to clear their throat. You might also notice them breathing faster than normal, even when they’re resting—try counting their breaths per minute; more than 30 while asleep could be a concern. Some dogs also develop a swollen belly or legs, which happens when fluid builds up because the heart can’t pump blood efficiently.

If you spot any of these signs, don’t wait to visit a vet—early detection makes a huge difference. Many vets will do a physical exam first, listening to your dog’s heart for murmurs or irregular beats, then might recommend blood tests, X-rays, or an echocardiogram to get a clear picture. In places like the EU or US, following local pet health guidelines—like keeping up with regular check-ups—isn’t just good practice; it also ensures you’re meeting any regional requirements for responsible pet ownership.

Treating heart disease often involves medication to help the heart work better or reduce fluid buildup, but lifestyle changes matter too. Your vet might suggest switching to a low-sodium dog food, adjusting exercise to short, gentle walks instead of intense play, and avoiding extreme temperatures—both very hot and cold weather can stress a dog’s heart. Sticking to these changes helps keep your pup comfortable and can slow the progression of the condition.

Remember, every dog is different, so knowing your dog’s normal habits is key. If your normally quiet dog starts pacing, or your playful pup loses interest in their favorite toy, those small changes can be clues. By staying alert and working closely with your vet, you can help your dog live a happy, healthy life even with a heart condition. Responsible pet care isn’t just about love—it’s about being attentive to the little signs that tell you something might be wrong.

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