Heartworms are parasites that enter your dog’s bloodstream as larvae through the bite of an infected mosquito. The heartworm larvae grow into large adult worms that clog the blood vessels, the lungs and the heart. Heartworms can make your dog very ill and if untreated, will kill him. There is treatment for heartworms but it is expensive and may require surgery. Thus it is better to prevent infection. Oral heartworm medication is available by prescription. Give your dog this medication monthly all year round since even a few warm days can make mosquitoes active and put your dog at risk. Protect your dog from getting mosquito bites by keeping him inside when mosquitoes are active. Don’t leave standing water on your property where mosquitoes could lay eggs. Your dog will need periodic blood tests to ensure that they haven’t been inadvertently infected by heartworms. Learn more from your Marion, IA veterinary clinic.

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