Usually OK: watch for signs
Eating cat poop is gross but usually not dangerous. It can cause mild vomiting or diarrhea and expose your dog to intestinal parasites. Clumping litter eaten in large amounts can cause constipation. Watch for stomach upset and keep the litter box out of reach.
What to do right now
- Keep the litter box where your dog cannot reach it (baby gate or covered box with a side entry).
- Watch for vomiting or diarrhea over the next 1-2 days.
- Ask your vet about a fecal test or deworming if this is a regular habit.
Why cat poop can be dangerous for dogs
Cat food is high in protein and fat, which makes cat feces attractive to dogs. Feces can carry roundworms, hookworms, Giardia and other parasites, and bacteria such as Salmonella.
Symptoms to watch for
- Vomiting
- Diarrhea
- Constipation or straining (if litter was eaten)
- Worms in stool or weight loss (longer term)
What not to do
- Do not punish your dog after the fact; manage access instead.
What the vet will do
Usually none is needed. Your vet may recommend a fecal parasite test and deworming.
Dog ate cat poop: FAQ
Why does my dog eat cat poop?
It is a common behavior called coprophagia. Cat feces are rich in protein and fat. Boredom, hunger and attention-seeking can also play a role.
Other "my dog ate…" guides
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Sources
This guide is general information, not a diagnosis. Every pet is different: when in doubt, call your vet or an animal poison control line.