Heart disease is a common condition that affects many dogs, especially as they age. Early detection and treatment can help improve your dog’s quality of life and increase their lifespan. Here are some signs and symptoms of heart disease in dogs to watch for:

1. Coughing: A persistent cough, especially one that gets worse at night or after exercise, can be a sign of heart disease. The cough may be dry or moist, and may produce white foam.
2. Difficulty breathing: Dogs with heart disease may have difficulty breathing, especially during exercise or excitement. They may pant excessively, have rapid or shallow breathing, or struggle to catch their breath.
3. Weakness or lethargy: Dogs with heart disease may become weak or lethargic, and may be less interested in exercise or play.
4. Loss of appetite or weight loss: Dogs with heart disease may lose their appetite or experience weight loss, even if they are still eating the same amount of food.
5. Fainting or collapse: In severe cases of heart disease, dogs may faint or collapse due to a lack of oxygen to the brain.
6. Bluish gums or tongue: Dogs with heart disease may have bluish gums or tongue, which is a sign of poor oxygenation.
7. Abdominal swelling: Dogs with heart disease may develop fluid accumulation in their abdomen, which can cause swelling and discomfort.

If you notice any of these signs or symptoms in your dog, it’s important to consult with a veterinarian as soon as possible. Your veterinarian can perform a physical exam, run diagnostic tests, and recommend a treatment plan based on your dog’s specific needs. Treatment may include medications to manage symptoms, such as diuretics to reduce fluid buildup, or medications to improve heart function. In some cases, surgery may be necessary to correct structural heart defects. With proper treatment and care, many dogs with heart disease can live long, happy lives.