Dog Symptom Guide
Dog Diarrhea
Most cases are mild, but dehydration and blood in stool are warning signs.
Evidence
Reviewed / Updated / Sources
Reviewed by: Not available
Last reviewed: February 13, 2026
Updated: February 13, 2026, 3:00 AM UTC
- Merck Vet Manual overview for diarrhea in small animals. · clinical_reference
Reference guide
What this symptom can mean
- Acute diarrhea: Read condition details and warning signs.
- Addison’s Disease (Hypoadrenocorticism): Read condition details and warning signs.
- Canine Infectious Hepatitis (Adenovirus): Read condition details and warning signs.
What to track before the vet
- When signs started and whether they are getting worse
- Appetite, water intake, and overall energy in the last 24 hours
- Any vomiting, diarrhea, blood, collapse, or breathing changes
- Recent food changes, new treats, medications, or toxin exposure
When to get care
Use the intake flow if you want a structured way to organize the symptom details before you contact a professional. Seek prompt care when signs are severe, worsening, repeated, or paired with breathing trouble, collapse, pale gums, pain, or inability to keep water down.
How to use this page
This symptom page is educational only. It helps you collect context and compare related condition pages, but it does not replace a veterinary exam or final care-routing decision.
Need guided next steps?
Symptom pages are educational references. Start symptom intake for guided questions and personalized care-routing guidance.
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