Why Do Dogs Eat Poop? (And What To Do About It)

TL;DR: Dogs eat poop (coprophagia) for behavioral, dietary, or medical reasons. About 15-25% of dogs do it regularly, so you're not alone. Most cases are behavioral (boredom, anxiety, attention-seeking, learned habit). Medical causes (parasites, malabsorption, diabetes) are worth ruling out, especially if the behavior is sudden. Eating their own poop is gross but usually safe; eating other animals' poop carries parasite risk. Solutions: pick up immediately, train "leave it," manage anxiety, rule out medical issues, and try food additives if needed.

Maple, our golden retriever, is a sweet and affectionate dog. She's also been known to inhale a piece of poop off the ground faster than I can react, leaving me to wrestle it out of her mouth while trying not to think too hard about my hand. If you have a poop-eating dog, you know the feeling.

So why does your perfectly nice, well-fed dog do this? Why is something so disgusting so consistently appealing to them? This guide walks through the actual reasons (some surprising), the difference between "annoying but fine" and "needs a vet visit," and the strategies that actually work to stop it.

The Short Answer: Why Dogs Eat Poop

The technical term for poop eating is coprophagia, and it's incredibly common. Studies suggest 15-25% of dogs eat poop with some regularity, and most of those are eating their own poop, the poop of other dogs, or the poop of cats and other animals (in roughly that order of frequency).

The causes break into three broad categories:

• Behavioral, boredom, anxiety, learned habit, attention-seeking. Most common cause in adult dogs.
• Dietary, nutritional deficiency or just plain hunger.
• Medical, malabsorption disorders, parasites, diabetes, Cushing's, or other conditions that affect appetite or nutrient absorption.

Most adult dogs eating poop are doing it for behavioral or dietary reasons. Medical causes are real but less common, especially in dogs who have always eaten poop.

Why Do Dogs Eat Their Own Poop?

Eating their own poop (autocoprophagia) is the most common form. Reasons include:

Behavioral Reasons

• Cleanliness instinct. Mother dogs eat their puppies' poop to keep the nest clean. Some dogs carry this instinct into adulthood.
• Anxiety, especially from harsh house training. Dogs that were punished for accidents may eat their poop to "hide the evidence." This is a highly preventable cause.
• Boredom or under-stimulation. A bored dog with poop in front of them will sometimes investigate by eating it.
• Attention-seeking. If your dog gets a huge dramatic reaction every time they go for poop (yelling, chasing, frantic running), you've accidentally rewarded the behavior. Dogs love a good chase game.
• Learned habit. Some dogs just developed the habit early and never broke it.

Dietary Reasons

• Underfeeding. Hungry dogs eat whatever's available, including poop. If you're feeding less than recommended for your dog's size and activity level, this is the first thing to check.
• Poor diet quality. Diets low in nutrients or hard to digest can lead dogs to seek extra nutrition wherever they can find it.
• Missing enzymes or nutrients. Some dogs eat their own poop because it still contains undigested nutrients their body didn't absorb the first time around. This isn't necessarily a serious problem, but it suggests their digestive system may not be optimally efficient.

Medical Reasons

• Parasites. Worms can cause nutritional deficiencies or increased appetite.
• Pancreatic insufficiency. The pancreas doesn't produce enough digestive enzymes, leading to undigested food in stool that smells appealing to the dog.
• Malabsorption disorders. Conditions that prevent nutrients from being absorbed normally.
• Diabetes, Cushing's disease, thyroid disorders. Can all cause increased appetite.
• Medications. Steroids in particular can dramatically increase appetite.

Why Does My Dog Eat Cat Poop?

Cat poop is, for many dogs, irresistible. There are a few reasons:

• It's high in protein. Cat food is more protein-dense than most dog food, and cat poop reflects that. Dogs are essentially treating it as a protein-rich snack.
• Smell. Cat poop smells appealing to dogs in a way it doesn't to us.
• Accessibility. If you have an open litter box, it's basically a self-serve buffet from your dog's perspective.

The problem with cat poop specifically: it can carry parasites (toxoplasmosis, roundworms), and the litter itself can cause GI problems or even obstructions in dogs. If you have both cats and dogs:

• Use a covered litter box your dog can't access
• Put the litter box behind a baby gate, in a closet with a cat door, or somewhere only the cat can reach
• Scoop frequently, the less poop there, the less temptation
• If your dog is determined and can squeeze into any space, consider an automatic enclosed litter box

Why Does My Dog Eat Other Dogs' Poop?

Often when out on walks or at the dog park. Reasons are similar to the general list, plus:

• Novelty. A new smell is more interesting than the familiar one in your own yard.
• Communication / pheromones. Dogs investigate other dogs' waste as a form of communication. Sometimes investigation tips over into eating.
• Opportunity. Many parks and trails are surprisingly full of poop, picked up or not.

The risk: eating other dogs' poop carries the same parasite risk as eating cat poop, plus the unknown health status of the other dog. Always more concerning than eating their own.

Why Does My Dog Eat Horse, Deer, or Wildlife Poop?

Wildlife poop, especially from herbivores like horses, deer, and rabbits, often contains partially digested plant matter that's nutrient-rich and appealing to dogs. Some dogs go absolutely crazy for horse manure in particular.

The risk here is real: wildlife poop can carry parasites and pathogens your dog hasn't been exposed to. Goose and bird droppings can carry bacterial infections. Wild rabbit and deer pellets can transmit parasites. Always discourage this and rinse your dog's mouth if they've eaten a significant amount.

Why Is My Dog Suddenly Eating Poop?

A new, sudden onset of coprophagia is more concerning than a long-term habit. Things to consider:

• Diet change. Did you recently switch foods? The new food might not be meeting your dog's nutritional needs.
• Medication change. New medications, especially steroids, can dramatically increase appetite.
• Medical issue. Sudden onset can indicate a parasite, malabsorption problem, or other GI condition. Worth a vet visit.
• Stress or change. Moved, new pet, new baby, owner schedule change, all can trigger new anxiety behaviors.
• Underfeeding. If your dog is growing, working harder, or otherwise needs more calories, they might be looking for extra food.
• Cognitive decline. In senior dogs, sudden behavior changes can be related to cognitive dysfunction.

If the behavior is brand new and you can't identify an obvious cause, schedule a vet visit. It's worth ruling out medical causes before assuming it's just a behavioral quirk.

Why Do Puppies Eat Poop?

Coprophagia is much more common in puppies than in adult dogs, and it's often part of normal exploration. Puppies investigate the world with their mouths, and poop is right there.

Most puppies grow out of it by 9-12 months. The keys to preventing it from becoming a long-term habit:

• Pick up poop immediately so they don't have access
• Don't make a huge deal when they do try it, calm redirection is better than dramatic reaction
• Avoid harsh house training methods, no punishment for accidents
• Make sure they're getting enough food
• Provide plenty of mental and physical stimulation

Eating their own poop usually isn't a health risk for puppies. Eating other animals' poop (which can carry parasites) is more concerning and worth more active management.

Is It Bad for Dogs to Eat Poop?

Eating their own poop: usually not harmful, but gross. If you've recently dewormed your dog or they're on certain medications, it can be a slight concern, but otherwise it's mostly an aesthetic problem.

Eating other animals' poop: more concerning. Risks include:

• Intestinal parasites, roundworms, hookworms, whipworms, Giardia
• Bacterial infections, Salmonella, E. coli, Campylobacter
• Viral infections, especially parvo from sick dog feces
• Protozoal infections, Giardia, Coccidia

If your dog regularly eats other animals' poop, keep up with parasite prevention and consider fecal testing during annual checkups.

How to Stop Your Dog From Eating Poop

The strategies that actually work, in order of impact:

1. Pick Up Immediately

This is the single most effective approach. If there's no poop available, there's no poop to eat. Pick up after your dog every time, immediately. Check the yard before letting your dog out, especially in the morning, since nocturnal animals like raccoons and possums can leave droppings overnight.

2. Train "Leave It"

A solid "leave it" command is gold for any dog, but especially for poop eaters. Practice indoors with low-value items first, then high-value items, then outdoors, then with the actual problem behavior. Reward heavily when your dog redirects.

3. Manage Walks

Stay alert. If you know your dog will dive for any pile they see, watch ahead and steer around it. Keep walks brisk so there's less time to investigate, and use a short enough leash that you can intervene quickly.

4. Rule Out Medical Issues

If the behavior is sudden or paired with other symptoms (weight loss, diarrhea, increased appetite, lethargy), get a vet checkup. Fecal exam to check for parasites, basic bloodwork to check for diabetes or thyroid issues.

5. Reassess the Diet

Is your dog getting enough calories? Is the food high-quality, complete, and balanced? Some dogs benefit from adding a small amount of plain canned pumpkin (which adds fiber and changes stool composition) or a digestive enzyme supplement.

6. Address Boredom and Anxiety

Bored or anxious dogs find ways to entertain themselves, and eating poop is one of them. More exercise, puzzle feeders, training games, chew toys, and consistent routine can all help.

7. Stay Calm

When you catch your dog about to eat poop or in the act, calm redirection works better than a dramatic reaction. The dramatic reaction can accidentally reward attention-seeking, or stress your dog enough that they hide the behavior.

8. Food Additives

Several products on the market claim to make poop taste bad to dogs. They work for some dogs and not others. Common ingredients include MSG, yucca, parsley, and various enzymes. Pineapple is sometimes recommended as a natural option, though there's no strong research supporting it. Talk to your vet before trying any supplement.

9. Manage the Environment

If your dog has access to other animals' poop (cat litter box, livestock areas, wildlife trails), manage those situations:

• Move the litter box to a cat-only area
• Fence off areas where wildlife frequents
• Avoid known horse paths and farm areas on walks

10. Avoid Punishment for House Training Accidents

This is preventive but important. Harsh punishment for accidents can create the anxiety that leads to poop eating later. Use positive reinforcement for going in the right place, and clean up accidents calmly.

Does Pineapple Stop Dogs From Eating Poop?

It's a common home remedy, but the evidence is thin. The theory is that pineapple changes the taste of poop in a way the dog finds unappealing. Some owners report it works; others see no difference.

Pineapple is safe for dogs in small amounts and adds fiber and vitamins, so it's worth a try. Use fresh, plain pineapple, not canned in syrup. Small pieces mixed into food, not a huge serving. Don't expect miracles.

When to Call the Vet

Schedule a vet visit if:

• The behavior is sudden and new
• Your dog is also showing weight loss, lethargy, or appetite changes
• Your dog has diarrhea, vomiting, or other GI symptoms
• You suspect parasites (white specks in stool, scratching at rear, scooting)
• Your dog is on medications that might be involved
• The behavior persists despite consistent management and training
• Your dog ate the poop of a sick or unknown animal

The Short Version

Coprophagia is common, gross, and usually behavioral, boredom, anxiety, attention-seeking, or learned habit. Less commonly it's dietary (underfeeding, poor diet) or medical (parasites, malabsorption, diabetes). Eating their own poop is usually harmless; eating other animals' poop carries parasite risk. The best fix is making poop unavailable (pick up immediately) and training "leave it." Rule out medical causes if the behavior is sudden or paired with other symptoms. Stay calm when you catch it, dramatic reactions can backfire. Most puppies grow out of it; most adult dogs can be managed with consistent effort.