Heartworm disease in dogs is caused by a parasitic worm called Dirofilaria immitis, which is transmitted through mosquito bites. Recognizing the symptoms early can be crucial for effective treatment. Here are some common symptoms to watch for:

1. **Coughing**: A persistent cough is one of the most common symptoms. It may start as a mild cough and can progress over time.

2. **Fatigue**: Dogs with heartworm disease often show signs of fatigue, especially after exercise. They may tire more easily than usual.

3. **Weight Loss**: Unexplained weight loss can occur as the disease progresses, often due to decreased appetite.

4. **Difficulty Breathing**: As the disease advances, dogs may experience labored breathing or shortness of breath.

5. **Swollen Abdomen**: In severe cases, fluid may accumulate in the abdomen, leading to noticeable swelling.

6. **Fainting or Collapse**: In advanced stages, dogs may faint or collapse due to reduced blood flow and oxygen delivery.

If you notice any of these symptoms in your dog, it's important to consult your veterinarian as soon as possible for a proper diagnosis and treatment plan. Heartworm disease can be serious, but it is preventable with regular heartworm prevention medication. Regular vet check-ups and testing are also essential for early detection and management of this condition.

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Dog Health Dog Care Veterinary Care Heartworms Symptoms