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AIVet

Why does my Border Collie have diarrhea?

Diarrhea is one of the most common reasons pets visit the vet. Most acute cases resolve quickly, but chronic or bloody diarrhea always warrants a professional exam.

Common causes of diarrhea in Border Collies

  • Stress (new environment, travel, boarding)
  • Sudden diet change
  • Bacterial or viral infection (parvovirus, panleukopenia)
  • Parasites (giardia, coccidia)
  • Food allergies or inflammatory bowel disease (IBD)

When it's an emergency

Take your Border Collie to a vet immediately if any of the following apply:

  • Bloody or black, tarry stools
  • Diarrhea lasting more than 48 hours
  • Concurrent vomiting or fever
  • Signs of dehydration (sticky gums, skin tenting)

Safe home care steps

  • Ensure constant access to fresh water
  • Bland diet for 2–3 days
  • Probiotic supplement (vet-approved)

Important: Home care is supportive only. If symptoms persist beyond 24–48 hours, consult a licensed veterinarian — AI guidance is not a substitute for professional diagnosis.

Get a personalized assessment

Use our free AI symptom checker for guidance tailored to your Border Collie's age, weight, and history.

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Frequently Asked Questions

Diarrhea is one of the most common reasons pets visit the vet. Most acute cases resolve quickly, but chronic or bloody diarrhea always warrants a professional exam.