Heartworm Disease in Dogs : Symptoms, Causes, & Treatment
Heartworm disease in dogs is one of the most serious and potentially fatal conditions that pets may be exposed to. This mosquito-borne disease, caused by parasitic worms residing in the heart, lungs, and associated blood vessels of animals, can cause severe lung disease, as well as heart failure and eventual death if not treated. Knowing the symptoms, causes, and treatment options for heartworm disease in dogs is important for protecting your pet's health. What is heartworm disease in dogs? Heartworm disease is caused by a parasite known as Dirofilaria immitis. Once transmitted into the dog through the bite of an infected mosquito, the microscopic larvae begin their journey through the dog's bloodstream. Over the course of several months, they mature into foot-long adult heartworms that lodge in the heart, lungs, and pulmonary arteries. Because these worms live inside your dog’s cardiovascular system, the condition is highly dangerous. It can lead to heart failure, labored b...
