Dog Diarrhea

Dog

Diarrhea in dogs is extremely common and can range from a mild, self-resolving episode to a sign of serious illness. It can be acute (sudden onset) or chronic (lasting more than a few weeks). The consistency, color, and frequency of stool can help your vet determine the underlying cause.

Possible Causes

  • Dietary indiscretion (eating garbage, table scraps, or foreign objects)
  • Sudden diet change
  • Food allergies or intolerances
  • Intestinal parasites (giardia, roundworms, hookworms)
  • Viral infections (parvovirus, distemper, coronavirus)
  • Bacterial infections (salmonella, campylobacter, E. coli)
  • Stress or anxiety (boarding, travel, changes in routine)
  • Inflammatory bowel disease (IBD)
  • Pancreatitis
  • Toxin ingestion

When to See a Vet
Important

Seek veterinary care if any of the following apply:

  • Diarrhea persists for more than 48 hours
  • Stool contains blood (bright red or dark/tarry)
  • Your dog is also vomiting, lethargic, or refusing to eat
  • Your dog is a puppy (high risk of dehydration and parvovirus)
  • Diarrhea is accompanied by fever or abdominal pain
  • Your dog is straining to defecate or producing only small amounts
  • You suspect your dog ingested a toxin or foreign body

First Aid Tips
Home Care

These tips can help while you monitor the situation or wait for your vet appointment:

  1. Fast your dog for 12-24 hours (adults only, not puppies) while providing fresh water
  2. Gradually reintroduce a bland diet: boiled chicken (no skin/bones) with plain white rice
  3. Add a tablespoon of plain canned pumpkin (not pie filling) to meals to firm stools
  4. Ensure your dog stays well hydrated — offer small, frequent amounts of water
  5. Consider adding a probiotic supplement designed for dogs
  6. Keep your dog's environment clean and disinfect areas soiled by diarrhea

Related Symptoms

Dog Excessive Thirst
Dog Limping

Breeds Commonly Affected

german shepherd
golden retriever
french bulldog

Is this an emergency?

If your pet is in severe distress, call your vet or an emergency animal hospital immediately. For poisoning emergencies, call the ASPCA Animal Poison Control Center at (888) 426-4435.

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