The symptoms of a dog’s heart failure are various, mainly including the following aspects:

1. The dog may wheeze, cough or even have shortness of breath, which may be due to the inability of the heart to Effectively pumping blood into the lungs, resulting in insufficient oxygen supply.

2. Dogs may experience obvious wheezing, tachycardia, or even instant shock or death during or after exercise.

3. Cough is a common symptom of heart disease, especially dry cough or wet cough. Coughing may occur more frequently at night, possibly due to the heart not being able to pump blood effectively, causing blood to back up into the lungs.

4. Heart problems may cause the heart muscle to weaken, which in turn prevents blood from flowing forward smoothly, causing abdominal pain. effusion.

5. The dog may show more fatigue and weakness than usual, and even its favorite toys and snacks cannot arouse its interest.

6. In some serious cases, dogs may suddenly faint or convulse, accompanied by symptoms such as difficulty breathing, mouth breathing, and mucosal cyanosis.

In addition, a dog’s heart failure may also manifest itself as changes in heart rate and pulse intensity, with a rapid and substantial pulse. Also, decreased appetite and weight loss may be signs of heart problems.