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What happens when a roundworm gets in your dog?

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After your dog swallows roundworm eggs, they hatch and turn into larvae. The larvae then spread through your dog’s liver and up to his windpipe. Next he coughs and then swallows the larvae. That’s how they get into his intestine, where they can grow into adult worms. Then they lay their own eggs, which starts the cycle again.

From: Roundworms in Dogs WebMD Medical Reference

SOURCES:

Companion Animal Parasite Council: ''Roundworms'' and ''Ascarid.''

Cornell University College of Veterinary Medicine Baker Institute for Animal Health: ''An Overview of Canine Roundworm Infections.''

The Merck Veterinary Manual: ''Roundworms in Small Animals.''

Reviewed by Amy Flowers on October 24, 2018

SOURCES:

Companion Animal Parasite Council: ''Roundworms'' and ''Ascarid.''

Cornell University College of Veterinary Medicine Baker Institute for Animal Health: ''An Overview of Canine Roundworm Infections.''

The Merck Veterinary Manual: ''Roundworms in Small Animals.''

Reviewed by Amy Flowers on October 24, 2018

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How can you prevent roundworms in dogs?

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