Why Do Dogs Eat Cat Poop? Causes, Risks, and How to Stop It

It’s a question no dog owner wants to ask out loud: why does my dog eat cat poop?

While it may sound gross, this behavior—known as coprophagia—is surprisingly common. Dogs may be drawn to the litter box for a variety of reasons, ranging from instinctual cleaning behaviors to underlying health issues.

Why Dogs Eat Cat Poop

Several factors can drive this habit:

• Instinct and den hygiene. Some dogs naturally clean their environment by eating the waste of other animals, a trait that can persist into adulthood.
• Curiosity and taste. Cats often have a higher protein content in their feces, which can attract dogs.
• Nutritional deficiencies. Low levels of certain vitamins or minerals can prompt dogs to seek additional nutrients in feces.
• Boredom or lack of stimulation. Dogs that aren’t getting enough exercise or mental engagement may turn to this behavior to occupy themselves.

If you notice your dog repeatedly chewing on cat poop, consider reviewing its diet, exercise routine, and enrichment activities.

Is Eating Cat Poop Harmful?

Yes. Feces can harbor intestinal parasites, bacteria, and even residual medications that cats may have taken. Consuming large amounts can lead to gastrointestinal upset or, in severe cases, intestinal blockage—especially if the litter is ingested.

Young dogs are especially susceptible because their immune systems are still developing. Symptoms such as vomiting, diarrhea, or sudden behavioral changes warrant prompt veterinary attention.

How to Stop Your Dog From Eating Cat Poop

Here are practical steps:

• Restrict access. Place the litter box in a room your dog can’t enter or use a baby gate with a small opening that only the cat can pass through.
• Use covered or elevated boxes. A box with a lid or one that sits on a high shelf can deter curious dogs.
• Keep the box clean. Dogs are opportunists; regular cleaning reduces temptation.
• Enhance enrichment. Ensure your dog receives adequate exercise, puzzle toys, and training sessions that reinforce desirable behaviors.

When to Consult a Veterinarian

If the habit becomes frequent or appears compulsive, it may signal a medical issue such as gastrointestinal disease, parasites, or a nutrient imbalance. A veterinarian can conduct tests and recommend dietary changes or behavioral interventions.

Even a single incident can expose your dog to pathogens, but repeated exposure heightens health risks. Discuss prevention strategies with your vet if your dog won’t quit.

We created this article in collaboration with AI technology and had it fact‑checked and edited by a HowStuffWorks editor.