What Are the Signs of Heart Conditions in Dogs?

Even puppies and older dogs could be suffering from heart problems since heart problems can be congenital or a pain that develops. The signs of heart disease in our dogs can take time to manifest. A regular checkup of your dog by the primary care veterinarian can help you spot or stop heart issues in your furry friend.

Many different factors could cause heart disease in dogs. Breed, diet, obesity, and age are all possible risk factors. The most prevalent ailment for small-breed dogs is heart valve disease, typically a problem for those five years and older. Whatever cardiac issue your dog has, it is crucial to identify early warning signs.

Signs of Dog Heart Conditions

Like humans, dogs often suffer from heart diseases, which may trigger several underlying disorders, like heart valve damage, irregular heartbeats, and muscle diseases. While dogs can suffer from various heart conditions, they tend to show similar signs and symptoms that can let owners know something is wrong.

Persistent Cough

As with humans, dogs might cough due to sinus issues or allergies. However, if your pet’s cough persists over an entire week or two, it may be a sign of heart issues. This is because a cardiac illness in your pet could result in insufficient blood pumping that causes swelling of the lungs and makes them cough.

In some dogs, the accumulation of fluids can occur in the lungs if the heart isn’t working effectively. Other dogs could have cardiac issues which cause heart enlargement. A swollen heart may obstruct the airways, causing coughing. Consult your veterinarian about your pet’s internal conditions.

Fainting or Collapsing

When a heart’s performance is subpar, vital organs like the brain could become deficient in nutrients, most notably oxygen. For dogs suffering from heart disease, blood flow to the brain can be restricted, which could cause a collapse or fainting. Exercise often causes fainting and collapse in dogs with heart disease; however, sometimes coughing may trigger an episode.

Difficulty Breathing

Heart illness can cause respiratory issues in pets (dyspnea). A dog’s breathing may be more forceful or more quickly.

Some dogs may stand or sit with their legs apart and extend their necks. Dogs with severe heart disease typically sit or stand for extended periods because they are more prone to having difficulty breathing when lying down.

When your dog sleeps at home, your vet may advise you to count how many breaths your dog takes every minute. It is possible to monitor the onset or progression of congestive heart failure in canines with heart disease.


While walking or exercising, heart-related dogs will get exhausted rapidly. They could get more sleep or rest than the average dog.

After a rigorous round of play, they’ll be breathing hard or panting. If they take a long time to recover, or if they do not seem to be interested in playing, it could indicate that your pet has to visit a vet. For cat owners, call a veterinary clinic for a cat routine checkup.

Behavior Changes

Heart-related dogs may display other behavioral changes like decreased appetite isolation and a reluctance to play or participate in previously enjoyable activities. Heart disease symptoms can be similar to other illnesses, such as epilepsy, rheumatoid arthritis, and chronic lung diseases. Your physician can rule out possibilities of diagnosis by conducting a thorough diagnosis and medical record. You can get more information on this page.