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Why do my dogs have tapeworm and diarrhea despite flea treatment?

Updated On September 23rd, 2025

Pet's info: Cat | York Chocolate | Female | spayed | 1 year and 8 months old | 13 lbs

Mason’s stool was perfectly fine yesterday today in the morning he was having major diarrhea and I believe he has tapework, I already gave him medication. i’m confused on how he got it, my dogs get treated for fleas and they aren’t around other pets except the dog park. they don’t eat nothing besides dry food and I just noticed my other dog Aubree has it too, what could the problem be i’m really worry. :(

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on June 9th, 2018

It is easy to catch tape worm. Even if your dogs are treated against fleas, there sometimes is a live infected flea hopping on and before it dies, your dog may eat it while grooming and so get infected. It is not a big problem for the dog but rather more for us, since it is gross when the proglottids crawl out. I suggest you worm your other dog as well (you need a wormer that has praziquantel as an ingredient). If the diarrhea does not go away within two days, feed boiled white rice and boiled white boneless chicken meat for a few days, then transition back into their regular food. If the diarrhea does not subside after the bland diet, then you should have your dogs seen by a vet.

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