When heartworms infiltrate the lungs and start reproducing in the lungs and in the surrounding vessels, your dog may start to cough. This is usually a dry, unproductive cough that can be more obvious after exercise. Sometimes dogs may have “coughing fits,” that may even cause fainting.
What is a heartworm cough like?
1. Persistent cough. Unlike a regular cough or a kennel cough, which is strong and sporadic, a heartworm- related cough is dry and persistent. In the early stages, the cough may be induced by even small amounts of exercise, as the heartworm parasites make their way into the lungs, creating blockage and discomfort.
How long does heartworm cough last?
The first week after the injections is critical because this is when the worms are dying. A cough is noticeable for seven to eight weeks after treatment in many heavily infected dogs. If the cough is severe, notify your veterinarian for treatment options.
How does a dog act if they have heartworms?
Signs of heartworm disease may include a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss. As heartworm disease progresses, pets may develop heart failure and the appearance of a swollen belly due to excess fluid in the abdomen.
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