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Is heartworm in dogs only spread by mosquitoes, or can ticks too?

Updated On September 23rd, 2025

As said that heartworms disease is only cause by mosquito bite so suppose a dog is having heartworm and one tick from that infected dog pass to my dog through my clothes and that tick of heartworm i fected dog bite my dog so will my dog is also going to have thag heartworm disease lr it is only caused by mosquitoea only

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on June 14th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Heart worm is transmitted by mosquitoes only. The larva completes it's life cycle with in the mosquito. The tick is not part of it's life cycle. Ticks carry many other diseases though. I recommend preventing heart worm and flea and ticks with preventatives, then your dog will be protected. Have a great day!

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