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Could my tiny puppy's diarrhea be from new food or the 5-in-1 vaccine?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | unspayed | 1 month and 23 days old | 1lb

Could my puppies diarrhea be from change in food or the 5 in 1 shot I give her I don't want her to get sick she is so small.

1 Answer

Most Helpful Answer

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Answered By Jeffrey Milner

Veterinarian

Published on July 24th, 2017

Either one of these things can result in diarrhea. At less than eight weeks, Buttons really should not even be receiving a vaccine as of yet, as that is the age when it is licensed at a minimum. Dietary change should always be done over a gradual period, approximately one week. Diarrhea can also be called by GI parasites in puppies this young. I would bring in a fecal sample to your veterinarian to be looked at to verify if any of this is occurring. If so, a dewormer can be administered and rid Buttons of the nasty bugs. Regarding vaccination, if you are concerned about reactions to the shots just make sure that Buttons is never receiving more than one or two at a time. With larger dogs, I don't hesitate to do up to four at any given time, but with a tiny pup I won't give more than two. Hope this helps.

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