The severity of the infection, as well as the overall health of the dog, will play a role in determining how long the dog will live. In general, however, it is thought that most dogs with heartworm infection will not live more than two years if they do not receive some treatment.
What happens if heartworm is not treated in dogs?
Not all dogs with heartworm disease develop caval syndrome. However, if left untreated, heartworm disease will progress and damage the dog's heart, lungs, liver, and kidneys, eventually causing death.
How long can heartworms go untreated?
Once inside a new host, it takes approximately 6 months for the larvae to develop into sexually mature adult heartworms. Once mature, heartworms can live for 5 to 7 years in dogs and up to 2 or 3 years in cats.
Can a dog live a long life after heartworms?
Dogs with heartworm disease can live high-quality lives as long as they are given appropriate care. After completing treatment and following your veterinarian's recommenda- tions on heartworm disease testing and prevention, the chances of any long-term effects are very low.
Can a dog survive stage 4 heartworms?
Stage 4. There is a large mass of worms which physically blocks the blood flowing back to the heart. This stage is life-threatening and requires quick surgical removal of the heartworms. However, surgery is risky and even with surgery, most dogs in this stage die.
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