Heartworms are parasites that are spread by mosquitoes. All dogs in our area are at risk for developing heartworm disease. Heartworms live in the pulmonary artery of the heart and will eventually cause heart failure. Prevention is easy, and one of the most important things you can do for your dog. If your dog is diagnosed with heartworms, our doctors can discuss treatment options specifically for your pet. This disease can be treated if the infection is diagnosed early.