How do you know if your dog has heartworms?

As a veterinarian with years of experience in treating animals, I can provide you with some key indicators that may suggest your dog has heartworms. Heartworm disease is a serious and potentially fatal condition caused by parasitic worms that live in the arteries of the lungs and sometimes in the heart. Here are some signs to look out for: 1. A soft, dry cough: This can be an early sign as the parasites make their way to the lungs and start multiplying. 2. Inactivity or lethargy: Dogs with heartworms may become less active and more tired than usual. 3. Weight loss or anorexia: A loss of appetite or weight without a change in diet can be a sign. 4. Rapid or difficult breathing: As the heartworms grow in number, they can cause blockages in the blood vessels leading to the lungs. 5. Bulging chest: In some cases, the chest may appear enlarged due to the presence of heartworms. 6. Allergic reaction: Some dogs may have an allergic reaction to the dying worms, which can cause skin issues. 7. Collapse: In severe cases, dogs may suddenly collapse due to the strain on their heart and respiratory system. It's important to note that not all dogs show these signs, and some may show no symptoms at all until the disease is advanced. If you suspect your dog has heartworms, it's crucial to consult with a veterinarian for a proper diagnosis, which typically involves a blood test.

Signs of Heartworms in a DogA soft, dry cough. The parasites make their way to the lungs and start multiplying in the lungs and surrounding veins. ... Inactivity or lethargy. ... Weight loss or anorexia. ... Rapid or difficult breathing. ... Bulging chest. ... Allergic reaction. ... Collapse.