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Why do my two dogs have chronic diarrhea that antibiotics don't fix?

Updated On September 23rd, 2025

Pet's info: Dog | Cane Corso | Female | spayed | 85 lbs

2 of our 3 adult Cane Corsos (Mom and son) have had diarrhea for a couple months. Sadie was put on Met . . . (antibiotic) and Fortiflora. The day after we started her on the antibiotic, her stools became normal. 2 days after we ran out, the diarrhea came right back. Wags' diarrhea was semi-manageable until recently. No vomit, lethargy or lost appetite. Any thoughts or advice is greatly appreciated. We love our babies but we're cash strapped and diagnostics can get EXTREMELY expensive.

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1 Answer

Most Helpful Answer

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Answered By Sarah Derksen, DVM

Veterinarian

Published on January 10th, 2018

Hi. It may be some recurring colitis, bacterial overgrowth, or a parasite. If they haven't had a fecal test done, I recommend getting checked for parasites. If that is normal, a fecal culture for the less common parasites, or resistant bacterial infections. The next step would be looking in to food sensitivities, although it would be a bit odd for both pets to develop that simultaneously. Give your veterinarian a call tomorrow to schedule a follow up, and look in to further fecal testing. Good luck.

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