How can you tell if a dog is dying from heartworms?
Sarah Garza
Updated on April 18, 2026
Pay attention to these warning signs of heartworms in dogs, and take your pet to the vet if these symptoms persist.
- A dry unproductive cough. ...
- Inactivity or laziness. ...
- Weight loss and loss of appetite. ...
- Shallow and rapid breathing. ...
- Distended chest. ...
- Allergic reactions. ...
- Collapsing or fainting.