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What are the Symptoms of Heartworm Disease in Dogs?

Heartworm disease is a serious and potentially life-threatening condition that affects dogs. As a pet owner, it's crucial to understand the symptoms, causes, and treatment options for this disease to ensure the health and well-being of your beloved canine companion.
 

What is Heartworm Disease?

Heartworm disease is a parasitic infection caused by the Dirofilaria immitis worm. This worm resides in the heart and pulmonary arteries of infected animals, primarily dogs. The adult worms can grow up to 12 inches long and can severely compromise the dog's cardiovascular system, leading to potentially fatal complications if left untreated.
 

How Do Dogs Contract Heartworm Disease?

Dogs contract heartworm disease through the bite of an infected mosquito. When a mosquito bites an animal carrying heartworms, it picks up microscopic heartworm larvae, called microfilariae. These larvae develop inside the mosquito over 10-14 days and then are transmitted to a dog when the mosquito bites again. Once inside the dog's body, the larvae mature into adult heartworms over several months, eventually settling in the heart, lungs, and associated blood vessels, leading to severe health issues if untreated.
 

Common Symptoms of Heartworm Disease in Dogs

The symptoms of heartworm disease in dogs can vary depending on the stage of the infection and the severity of the infestation. Some common symptoms include:
 

  • Cough: A persistent, dry cough is often one of the earliest signs of heartworm disease.
     

  • Lethargy: Infected dogs may experience increased fatigue and reduced energy levels, making it difficult for them to engage in physical activity.
     

  • Weight loss: As the disease progresses, dogs may experience a loss of appetite and subsequent weight loss.
     

  • Reduced exercise tolerance: Dogs with heartworm disease may tire more easily during physical activity and may be less inclined to exercise.
     

  • Difficulty breathing: The presence of adult worms in the heart and pulmonary arteries can cause difficulty breathing, especially during physical exertion.
     

  • Swelling in the abdomen: Advanced cases of heartworm disease can lead to the accumulation of fluid in the abdomen, causing a distended appearance.
     

Some dogs may not exhibit any visible symptoms in the early stages of the disease, making regular veterinary check-ups essential for early detection and treatment.
 

The Importance of Early Detection

Early detection of heartworm disease is crucial for the successful treatment and management of the condition. In the early stages, the disease may be more easily treated, and the risk of complications can be significantly reduced. Regular veterinary check-ups are essential for the prevention and early detection of heartworm disease in dogs. During these check-ups, your veterinarian can perform a simple blood test to screen for the presence of heartworm antibodies or antigens, which can indicate an active infection. Additionally, your veterinarian can recommend and administer preventive medications, such as monthly heartworm pills or topical treatments, to help protect your dog from contracting the disease.
 

Book Your Pet’s Heartworm Screening with Community Veterinary Medicine Today

Heartworm disease is a serious and potentially life-threatening condition that requires vigilance and proactive management. By educating yourself about the symptoms, causes, and treatment options for this disease, you can take the necessary steps to protect your canine companion and ensure their long-term health and well-being.
 

To schedule your pet’s heartworm disease screening, contact Community Veterinary Medicine at our office in New York, New York, by calling (646) 912-9513 to book an appointment today.

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