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What causes recurring diarrhea in my German Shepherd with negative test?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Female | spayed | 80 lbs

Good morning! My 3-year-old German Shepherd is having increased episodes of diarrhea this past month or so. There has been no change to her food or treat habits. Her fecal test came back negative at the end of May. What could be causing this?

1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on July 26th, 2019

Poor girl. Many things can cause loose stool including intestinal parasites, inflammatory bowel disease, EPI (exocrine pancreatic insufficiency) or Giardia just to name a few. I would recommend rechecking the stool but also ensuring a Giardia test is also ran. Then I would discuss with your vet about any other symptoms such as weight loss, appetite changes, etc, to offer more clues as to what to test for next. A blood panel may also offer some insight as to what is causing the loose stools. You didn't mention that your vet treated Echo with anything, so I would recommend starting off with Metronidazole and a probiotic to see if this resolves the problem before delving into other extensive testing. I would also recommend a dewormer just to cover all basis, since some fecal tests can come back falsely negative. I hope that this helps and best wishes moving forward with your pet Echo. Take care!

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