You are watching your dog in the backyard, doing their thing, and then it happens. They turn around and eat it. The reaction from most dog owners is immediate and universal: horror, confusion, and the desperate question — why on earth would they do that?
If you have witnessed this, you are far from alone. Eating poop is one of the most commonly reported behavioral concerns among dog owners in the United States. It is gross, it is alarming, and it raises legitimate questions about your dog’s health and hygiene. But before you spiral into worry, the good news is that this behavior, as revolting as it seems to us, is actually quite common in dogs and often has a very explainable cause.
Understanding why your dog does it is the first step toward stopping it. This guide covers everything you need to know: what the behavior is actually called, why dogs do it (the causes are more varied than most people realize), what it means when a dog eats their own poop specifically, how to stop it, and when it is time to get your vet involved.
What Is Coprophagia?
The clinical term for eating feces is coprophagia (pronounced ko-pro-FAY-jee-uh). It comes from the Greek words for “dung” and “to eat.” While it sounds like something out of a medical textbook, the behavior itself is surprisingly common across the animal kingdom — and dogs are no exception.
Coprophagia in dogs can take a few different forms:
Autocoprophagia is when a dog eats their own feces.
Intraspecific coprophagia is when a dog eats the feces of another dog.
Interspecific coprophagia is when a dog eats the feces of another species entirely — cat poop being by far the most common example among household pets, though dogs will also go after deer poop, rabbit pellets, goose droppings, and other wildlife waste when given access to them.
Each type can have different underlying causes and different levels of concern from a health standpoint. Cat feces tends to get a lot of attention because many dogs are obsessed with it — largely because cat food is high in protein and fat, making the resulting waste smell (to a dog, at least) like a snack worth having.
Coprophagia is not a disease in itself. It is a behavior — one that can stem from instinct, environment, psychology, or a medical issue. The key is figuring out which one applies to your dog.
Why Do Dogs Eat Poop?
There is rarely a single clean answer. Dogs eat poop for a range of reasons, and in many cases more than one factor is at play. Here is a breakdown of the most common causes:
Instinct and Evolutionary Behavior
This is one of the most overlooked explanations, and it actually makes a lot of sense from an evolutionary standpoint. Dogs are descended from wolves, and in the wild, canines would consume the feces of prey animals or even their own waste to keep their dens clean and reduce the scent trail that could attract predators or parasites.
Mother dogs instinctively eat the feces of their newborn puppies in the first weeks of life to keep the whelping area hygienic and to stimulate elimination in the pups. This is completely normal maternal behavior. The issue is that some dogs retain this instinct well past puppyhood.
Puppies also explore the world primarily through their mouths. Sniffing and occasionally tasting feces is part of how young dogs learn about their environment. Most puppies outgrow this on their own. Some do not — especially if the behavior goes uncorrected early on.
Nutritional Deficiencies
One of the more medically significant reasons a dog might eat poop is that their diet is not meeting their nutritional needs. Dogs are remarkably resourceful when it comes to compensating for what their body is lacking. If a dog is not getting adequate vitamins, minerals, or enzymes from their food, they may seek those missing nutrients elsewhere — including in feces, which still contains partially digested material.
Deficiencies most commonly associated with coprophagia include vitamin B1 (thiamine), vitamin B12, and certain trace minerals. Dogs eating low-quality kibble with poor digestibility are at higher risk. This is worth keeping in mind the next time you are evaluating your dog’s food.
Poor Nutrient Absorption and Digestive Disorders
A dog can be eating perfectly good food and still develop coprophagia if their digestive system is not absorbing nutrients properly. One of the more significant conditions in this category is Exocrine Pancreatic Insufficiency (EPI), a disorder where the pancreas does not produce enough digestive enzymes.
Dogs with EPI often pass stool that is rich in partially digested food because their gut cannot break down what they eat. To a dog, that waste still smells and registers like food — because in a sense, it still is. Other digestive conditions like inflammatory bowel disease and chronic malabsorption syndrome can cause similar patterns.
If your dog is eating poop and also experiencing weight loss, chronic loose stools, or excessive hunger despite a normal diet, a digestive disorder is worth discussing with your vet.
Intestinal Parasites
Internal parasites — roundworms, hookworms, whipworms, giardia — steal nutrients from your dog’s gut. A heavily parasitized dog may feel persistently hungry and nutritionally depleted even when eating well. Eating feces becomes a way to try to compensate for what the parasites are taking.
Parasite prevention is one of the most straightforward fixes here. Routine fecal testing at annual vet visits and consistent year-round parasite prevention go a long way. Puppies especially should be dewormed on schedule since parasite transmission in young dogs is common.
Hunger and Caloric Insufficiency
Sometimes the answer is simpler than a medical condition: the dog is just hungry. Dogs that are underfed, eating too infrequently, or on a diet that is too low in calories for their size and activity level may resort to eating feces as a way to fill the gap.
This can also apply to dogs that are fed on an irregular schedule, dogs in multi-pet households where competition for food is a factor, or dogs recovering from illness who have lost weight and are running a caloric deficit.
Boredom and Under-Stimulation
Dogs need both physical exercise and mental stimulation to stay balanced. A dog that is left alone for long stretches of the day with nothing to do may turn to poop-eating simply as a way to occupy themselves. It sounds extreme, but boredom-driven behavior in dogs can take all kinds of forms — destruction, excessive licking, barking, and yes, coprophagia.
If your dog only engages in this behavior when left alone or in the yard unsupervised for long periods, boredom is likely a significant contributing factor.
Attention-Seeking Behavior
This one surprises a lot of people, but dogs are highly attuned to human reactions. If a dog has learned that eating poop generates an immediate, strong response from their owner — even a negative one like shouting or chasing — they may repeat the behavior because it reliably gets them attention.
For dogs that crave interaction (and many do), any attention is better than none. If your dog eats poop and looks back at you while doing it, this dynamic may be at play.
Anxiety, Stress, and Emotional Distress
Stress is a powerful driver of unusual behavior in dogs. Changes in environment, a new baby or pet in the household, a move, separation anxiety, or a history of harsh treatment can all trigger compulsive behaviors — including coprophagia.
Dogs that have been punished severely for having accidents indoors may eat their poop to hide the evidence and avoid punishment. This is fear-based behavior and is a direct result of punishment-heavy training methods. These dogs need a gentler, positive reinforcement-based approach to housetraining, not more punishment.
Confinement and Overcrowding
Dogs kept in kennels, shelters, or other confined spaces for extended periods are at much higher risk for coprophagia. When waste is not removed promptly, dogs in confined spaces are more likely to eat it — partly due to proximity, partly due to stress, and partly due to instinct to keep their area clean.
This is one of the reasons that prompt, consistent waste removal is such an important part of kennel management and professional pet care.
Mimicking Other Dogs
Dogs learn from each other. A dog that lives with or regularly interacts with another dog that practices coprophagia may pick up the behavior through observation and imitation. This is especially true of puppies learning from older dogs.
If you have a multi-dog household and one dog has started eating poop, watch whether the behavior begins to spread. Addressing it in one dog quickly can prevent it from becoming a household habit.
Why Do Dogs Eat Their Own Poop?
Eating their own feces — autocoprophagia — is a specific pattern worth addressing separately because the causes are somewhat different from why a dog might eat other animals’ waste.
When a dog eats their own poop, the most commonly identified reasons include:
Cleanup instinct left over from puppyhood. As mentioned, mother dogs eat their pups’ waste to keep the den clean. Some dogs retain this drive into adulthood and apply it to their own waste.
Digestive issues causing nutrient-rich stool. If a dog’s body is not absorbing nutrients properly, their own stool may still smell like food because it contains partially digested material. Conditions like EPI are particularly associated with autocoprophagia.
Dietary boredom or deficiency. A dog eating a repetitive, low-quality, or nutritionally incomplete diet may instinctively try to supplement it.
Anxiety and hiding behavior. Dogs that have been punished for pooping indoors sometimes eat the evidence to avoid a negative response from their owner.
Compulsive behavior. In some cases, autocoprophagia becomes a compulsive habit — something the dog does automatically without a clear ongoing trigger. Compulsive behaviors often develop from stress or anxiety and may persist even after the original trigger is resolved.
Scent attraction. Some dogs are drawn to their own stool simply because of the scent. Medications, supplements, or certain foods can alter the smell of a dog’s waste in ways that make it more appealing to the dog.
One important clarification: autocoprophagia is more common than most owners realize. A widely cited study from the University of California, Davis found that roughly 16 percent of dogs eat their own feces frequently, and nearly 24 percent of dogs have been observed eating feces at least once. So while it is unpleasant, it is not rare.
How To Stop a Dog From Eating Poop
The good news is that coprophagia is manageable in most cases. The approach that works best depends on identifying the underlying cause, but the following strategies are effective across most situations.
Clean Up Immediately and Consistently
This is the single most effective intervention available, and it works regardless of the underlying cause. If the poop is not there, it cannot be eaten. Getting into the habit of picking up waste immediately after your dog goes — rather than letting it accumulate in the yard — removes the opportunity entirely.
This is especially important for dogs that eat their own feces. The faster waste is removed from the environment, the less opportunity the behavior has to be reinforced.
Rule Out Medical Causes First
Before trying behavioral interventions, it is worth a vet visit to rule out nutritional deficiencies, digestive disorders, or parasites. A fecal test, basic bloodwork, and a review of your dog’s diet can identify or eliminate medical causes quickly.
If a health issue is found and treated, coprophagia often resolves on its own without further behavioral intervention.
Upgrade the Diet
If your dog is on a low-quality food, switching to a higher-quality, more digestible diet can reduce the drive to seek supplemental nutrients. Look for foods with a named protein source as the first ingredient and minimal fillers. Some dogs also benefit from the addition of digestive enzyme supplements or probiotic support, which can improve nutrient absorption.
Talk to your vet before making significant dietary changes, especially if digestive issues are suspected.
Use a “Leave It” Command
Training your dog to respond to a reliable “leave it” command is one of the most practical tools in managing coprophagia during walks or in the yard. This requires consistent practice but gives you real-time control over the behavior.
Pair “leave it” with a high-value reward — something your dog loves more than poop, if you can believe it — and practice it regularly until the response is automatic.
Increase Exercise and Mental Stimulation
If boredom is a contributing factor, the fix is more enrichment. This means longer or more frequent walks, interactive puzzle toys, training sessions, social playtime, and activities that engage your dog’s brain and body. A tired, stimulated dog is far less likely to engage in nuisance behaviors.
Aim for at least 30 to 60 minutes of active exercise per day for most adult dogs, with additional mental stimulation through training and enrichment activities.
Supervise Yard Time
Until the behavior is under control, do not let your dog roam the yard unsupervised. Go out with them, clean up waste immediately after they go, and redirect any interest in their own feces with a command or distraction.
Try Deterrent Products
There are commercially available food additives — such as For-Bid or certain enzyme-based supplements — designed to make a dog’s stool taste unpleasant to them. These work by altering the taste or smell of the feces after digestion.
Results with these products are mixed. Some owners report significant improvement; others see no change. They tend to work better as a complementary strategy alongside supervision and training rather than as a standalone fix.
Address Anxiety and Stress
If anxiety appears to be driving the behavior, addressing the root stress is essential. This might involve changes to the dog’s routine, more consistent human interaction, management of known triggers, or in some cases, consultation with a veterinary behaviorist. For dogs with significant separation anxiety, behavior modification and sometimes medication may be necessary.
Never use punishment as a response to coprophagia. It does not address the cause, and for fear-based cases, punishment makes the behavior worse.
Keep Cat Litter Boxes Out of Reach
If your dog is drawn to cat feces, the most practical solution is access control. Move the litter box to a location your dog cannot reach — inside a closet with a cat door, behind a baby gate, or in a room with a door the cat can slip through but the dog cannot. This works faster and more reliably than trying to train your dog away from the litter box.
When Is It Necessary to Seek Veterinary Advice?
While coprophagia is often a behavioral issue, there are clear situations where a vet visit is not optional — it is necessary.
Contact your vet if:
Your dog has started eating poop suddenly after never doing it before. Sudden behavioral changes in adult dogs often have a medical trigger. Do not chalk it up to “just being a dog” if this is a new behavior.
Your dog is eating their own feces and is also showing other symptoms like weight loss, chronic loose stools, excessive hunger, vomiting, low energy, or a dull coat. These signs together can point to EPI, parasites, or another digestive condition that needs treatment.
You have a puppy that eats poop and it is not improving with redirection or basic management. Puppies should be seen regularly anyway, and a vet can check for parasites and assess whether the behavior warrants further attention.
Your dog is eating feces from unknown animals or wild animals outdoors. This creates a real exposure risk to parasites, bacteria, and diseases. Dogs that eat goose droppings, deer scat, or the feces of stray animals can pick up giardia, salmonella, campylobacter, and other pathogens.
The behavior is compulsive and is not responding to the strategies above. Compulsive behaviors sometimes require veterinary behavioral intervention, including referral to a specialist and potentially medication.
Your dog has eaten cat feces and is showing signs of illness. Cat feces can contain Toxoplasma gondii and other parasites. While many dogs eat cat poop without immediate consequence, it does carry risk, especially for immunocompromised animals.
A good rule of thumb: if something feels off beyond the behavior itself, trust that instinct and call your vet. A quick phone call can often help you determine whether a visit is warranted.
How a Dog Poop Removal Service Helps Manage Coprophagia
Here is something most dog owners do not immediately connect: one of the most effective environmental strategies for managing coprophagia is prompt, consistent waste removal, and a professional pet waste removal service makes that effortless.
The logic is straightforward. If feces is not present in your yard, your dog cannot eat it. For dogs that engage in autocoprophagia or that eat the waste of other household dogs, removing poop quickly after it is deposited eliminates the opportunity entirely. The behavior cannot be reinforced if the temptation is not there.
But life gets busy. Most Americans with dogs report that yard cleanup happens infrequently — sometimes only once a week or less — which means waste can sit in the yard for days at a time. For a dog with a coprophagia problem, that is days of repeated opportunity to practice and reinforce the habit.
Beyond coprophagia management, there are plenty of other reasons to stay on top of yard waste removal:
Conclusion
Finding out your dog eats poop is jarring, but it is also one of the most common behavioral issues dog owners face. The behavior has a name (coprophagia), a wide range of causes (from instinct and boredom to nutritional deficiency and anxiety), and in most cases, it can be addressed effectively with the right approach.
Start by ruling out any medical cause with your vet. Evaluate your dog’s diet. Increase exercise and stimulation if boredom is a factor. Train a reliable “leave it” command. And most importantly — keep the environment clean. The less access your dog has to feces, the less opportunity the behavior has to stick.
For Los Angeles dog owners who want to make consistent yard cleanup effortless, Fido Flush is here to help. Regular, professional waste removal keeps your yard clean and gives you one powerful tool in the fight against coprophagia — without adding another chore to your week.
Frequently Asked Questions
Is it normal for dogs to eat poop?
Unpleasant as it is, yes — it is more common than most people realize. Research suggests roughly one in six dogs engages in frequent coprophagia, and nearly one in four has done it at least once. Puppies are especially prone to it. While it is not desirable behavior, it is not automatically a sign that something is seriously wrong.
Why do dogs eat cat poop?
Cat food is high in protein and fat, which makes cat feces smell significantly more appealing to dogs than their own waste. Most dogs are highly attracted to cat litter boxes for this reason. The best solution is access control — placing the litter box somewhere your dog cannot reach.
Is it dangerous for dogs to eat poop?
It can be. Eating feces from unknown animals, wild animals, or animals carrying parasites exposes your dog to a range of pathogens including giardia, salmonella, campylobacter, toxoplasma, and various intestinal worms. Even eating their own stool carries some risk if the dog has an undiagnosed parasite infection. Consult your vet if your dog regularly eats feces from any source.
How do I stop my dog from eating poop?
The most effective strategies are: clean up waste immediately, rule out medical causes, improve diet quality, train a “leave it” command, increase exercise and mental stimulation, supervise outdoor time, and address any underlying anxiety. Deterrent products can help as a supplement but rarely work as a standalone fix.
Can puppies outgrow eating poop?
Many puppies do outgrow coprophagia on their own, especially if the behavior is not reinforced and waste is cleaned up promptly. However, some puppies who are not redirected early can develop it into a persistent habit. Consistent supervision, immediate cleanup, and positive redirection during the puppy phase give you the best chance of it not becoming a long-term issue.
Does eating poop mean my dog is missing nutrients?
It can, but not always. Nutritional deficiency is one of many possible causes. If you suspect diet is the issue, talk to your vet about whether your dog’s current food is nutritionally complete and appropriate for their age, weight, and activity level.
How does yard cleanliness help with coprophagia?
Prompt waste removal eliminates the opportunity for the behavior to occur or be reinforced. If feces is not present in the yard, a dog with coprophagia cannot practice the habit. Scheduling regular professional waste removal — like the service Fido Flush provides across the Los Angeles area — is one of the easiest environmental strategies for managing the behavior.
