Does Vomiting Worms Mean Infestation?

James Glover
by James Glover
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QuestionWhy would my dog have vomited worms? (Mike Rodriguez - California)


It sounds like your dog has a heavy infestation of worms. This is quite common in puppies but unusual in older dogs. The most likely parasite is roundworm, which often looks like 5-8cm spaghetti strands. Roundworm can cause vomiting/diarrhea and can be life threatening if untreated. I would recommend an immediate visit to the vet to confirm which type of worm your dog is infected with and to get suitable treatment. This is especially important as some dog parasites can be transferred to humans.

Disclaimer: This service is meant to provide advice only and is not meant to replace an appointment with a registered veterinarian. Users should always seek a second opinion. Unfortunately we are only able to answer several questions per week so not everyone gets a published answer. And, unfortunately we can't answer by email.
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