If you have ever caught your dog sneaking into the cat’s litter box for an unpleasant snack, you are definitely not alone. Dogs eating cat poop is a relatively common behavior, particularly in homes where cats and dogs live together.
The medical term for eating feces is coprophagia. Although the behavior is disturbing to most people, dogs do not view feces the same way humans do. Their strong sense of smell, scavenging instincts, curiosity, food motivation, and learned behaviors can all make cat feces surprisingly interesting.
But that still leaves an important question:
Why does my dog eat cat poop, and can it make my dog sick?
In many cases, eating cat feces is simply an opportunistic behavior. However, persistent or newly developed coprophagia can sometimes occur alongside boredom, anxiety, increased appetite, gastrointestinal problems, or other health and behavioral issues.
The good news is that the behavior is usually manageable. Preventing access to the litter box, improving training and enrichment, and addressing possible medical causes can make a significant difference.
This guide explains why dogs eat cat poop, whether it is dangerous, why puppies may do it, and what you can do to stop the habit.
What Is Coprophagia?
Coprophagia is the term used to describe the consumption of feces.
A dog may eat:
- Its own stool
- Another dog’s stool
- Cat feces
- Feces from other animals
When a dog eats feces belonging to another species, such as a cat, this is sometimes called interspecies coprophagia.
Although humans naturally find the behavior unpleasant, coprophagia does not automatically mean that a dog is sick or nutritionally deficient. Dogs can develop this behavior for several different reasons, and the circumstances surrounding it are important.
Why Do Dogs Eat Cat Poop?
There is rarely one explanation that applies to every dog.
Dogs may eat cat feces because of scavenging instincts, curiosity, food motivation, easy access, boredom, learned behavior, or environmental factors. In some dogs, an underlying medical problem that increases appetite or changes digestion may also contribute.
Common reasons include:
- Natural scavenging behavior
- Curiosity
- Strong food motivation
- Easy access to the litter box
- Boredom or insufficient enrichment
- Learned behavior
- Stress or anxiety
- Increased appetite
- Certain gastrointestinal or medical conditions
Importantly, eating cat poop does not automatically mean your dog has a vitamin or protein deficiency. Nutritional deficiencies are only one possible explanation and should not be assumed without other evidence.
Why Are Dogs Attracted to Cat Poop?
To people, a litter box is something to avoid. To a dog, however, it is an area filled with interesting smells.
Dogs rely heavily on their sense of smell when investigating their environment. A litter box can therefore become an especially rewarding place for a curious or food-motivated dog.
The Smell Can Be Highly Stimulating
Dogs investigate unfamiliar objects primarily through scent, and feces contain many odors that can provide information about another animal.
What smells disgusting to us can therefore be interesting to a dog.
Cat Feces May Contain Food Residues
Cats have different nutritional requirements from dogs, and their feces can retain food-related odors that some dogs find attractive.
This does not make cat feces a healthy food source for dogs. It simply helps explain why some dogs find it particularly tempting.
The Litter Box Provides Easy Access
A litter box that is constantly available gives a dog repeated opportunities to investigate and eat feces.
Once the behavior becomes rewarding, the dog may deliberately return to the litter box.
Is It Normal for Dogs to Eat Cat Poop?
An occasional incident does not necessarily indicate that something is seriously wrong.
A puppy, for example, may investigate a litter box because it is exploring its surroundings. An adult dog may simply discover that the litter box contains something interesting and rewarding.
However, frequent or compulsive coprophagia deserves more attention, especially when it appears suddenly or occurs with other changes in health or behavior.
Occasional Coprophagia
Occasional behavior may be related to:
- Curiosity
- Scavenging
- Puppy exploration
- Opportunity
- Food motivation
When It Deserves More Attention
Talk to your veterinarian if your dog:
- Suddenly begins eating feces as an adult
- Repeatedly searches for feces
- Appears unusually hungry
- Is losing weight
- Has persistent vomiting or diarrhea
- Has changes in thirst or urination
- Shows other unusual behavioral changes
- Cannot be redirected away from feces
Coprophagia itself is a behavior, not a specific disease. The goal is to determine why it is occurring and whether anything else is contributing to it.
Main Reasons Dogs Eat Cat Poop
1. Natural Scavenging Instincts
Dogs are natural scavengers. Their ancestors survived by taking advantage of a wide range of available food sources.
Modern dogs still retain many of these exploratory and scavenging behaviors.
A dog does not automatically understand that feces are something it should avoid simply because humans consider them disgusting.
2. Curiosity
Curiosity is particularly important in puppies.
Dogs explore their environment using their:
A litter box can therefore become an interesting object for an inquisitive puppy.
If the puppy discovers that the contents are rewarding, it may continue returning to the box.
3. Easy Access to the Litter Box
Sometimes the simplest explanation is the most important one.
If your dog can freely reach the litter box, it has many opportunities to practice the behavior.
Repeated successful access can reinforce a habit, which is why environmental management is one of the most effective parts of treatment.
4. Boredom and Lack of Enrichment
Dogs need appropriate opportunities to explore, sniff, play, chew, and solve problems.
A dog that does not receive enough physical activity or mental stimulation may look for its own entertainment.
The litter box provides:
- Interesting smells
- Exploration
- Foraging opportunities
- Immediate stimulation
Increasing appropriate enrichment can help redirect the dog’s attention.
5. Food Motivation
Some dogs are exceptionally motivated by food.
These dogs may investigate almost anything that smells edible, including cat feces.
Food motivation varies between individual dogs, so it is more useful to consider your dog’s behavior than to assume that a particular breed will develop coprophagia.
6. Learned Behavior
A behavior that produces a rewarding result is more likely to be repeated.
If a dog discovers that eating cat feces is rewarding and is repeatedly allowed access to the litter box, the behavior can become established.
What started as curiosity can eventually become a learned habit.
7. Stress or Anxiety
Changes in a dog’s environment can sometimes contribute to behavioral changes.
Possible triggers include:
- Moving to a new home
- A change in household routine
- A new pet
- Separation from an owner
- Changes in relationships between pets
- Other major environmental changes
Stress is not the explanation for every case of coprophagia, but it is worth considering when the behavior begins suddenly alongside other behavioral changes.
Could a Nutritional or Medical Problem Cause Coprophagia?
It is possible for medical problems to contribute to abnormal eating behavior, but not every dog that eats feces has a nutritional deficiency.
A complete and balanced diet should normally provide the nutrients a healthy dog requires.
Veterinarians may become more concerned about an underlying medical problem when coprophagia occurs alongside signs such as:
- Increased appetite
- Weight loss
- Chronic diarrhea
- Poor stool quality
- Vomiting
- Changes in thirst or urination
- Other changes in health
Depending on the dog’s history, a veterinarian may consider problems affecting digestion, nutrient absorption, appetite regulation, or metabolism.
Do not start giving vitamins, minerals, fiber, or other supplements simply because your dog eats cat poop. If you suspect a nutritional or digestive problem, discuss it with your veterinarian.
Is Cat Poop Dangerous for Dogs?
Cat feces can expose dogs to bacteria, parasites, and other infectious organisms.
A single incident may cause no noticeable illness, but the risk depends on factors such as the health of the cat, parasite status, environment, and amount consumed.
Repeated ingestion is best prevented.
Bacteria
Cat feces can contain intestinal bacteria that may cause illness under certain circumstances.
Potential bacterial concerns include organisms such as:
- Salmonella
- Certain strains of E. coli
- Other intestinal bacteria
Not every exposure causes disease, but eating feces creates an unnecessary opportunity for exposure.
Parasites
Feces can potentially contain infectious stages of intestinal parasites.
Depending on the circumstances, concerns may include:
- Roundworms
- Hookworms
- Giardia and other intestinal organisms
Keeping both cats and dogs on appropriate veterinary parasite-prevention programs can help reduce these risks.
Digestive Upset
After eating cat feces, some dogs may develop temporary digestive symptoms such as:
Many dogs remain completely normal after an isolated incident, but digestive symptoms should be monitored.
What About Medication in Cat Feces?
If your cat takes medication, you may wonder whether the medication could affect your dog if the dog eats the cat’s feces.
The risk depends on the specific medication, dose, amount of feces consumed, and other factors.
Do not assume that medication exposure through feces is either harmless or dangerous without professional advice.
If your dog has eaten feces from a medicated cat and you are concerned, contact your veterinarian and provide the medication name.
Can Cat Litter Make a Dog Sick?
Yes.
A dog that digs through a litter box may swallow litter along with feces.
Small amounts may pass without causing a problem, but consuming a substantial quantity can cause gastrointestinal irritation and, depending on the type and amount of litter, potentially more serious complications.
Contact your veterinarian promptly if your dog has consumed a large amount of litter or develops:
- Repeated vomiting
- Abdominal pain
- Significant lethargy
- Difficulty passing stool
- Severe or persistent diarrhea
- Other concerning symptoms
Can Eating Cat Poop Make a Dog Sick?
It can, although many dogs do not develop serious illness after an isolated incident.
After your dog eats cat feces, monitor for:
- Vomiting
- Diarrhea
- Loss of appetite
- Lethargy
- Abdominal discomfort
- Dehydration
- Persistent changes in stool
If symptoms are severe, persistent, or accompanied by other concerning signs, contact your veterinarian.
Do not induce vomiting unless a veterinarian specifically tells you to do so.
Why Do Puppies Eat Cat Poop?
Puppies are especially likely to investigate unfamiliar objects with their mouths.
They are still learning what is appropriate to eat, chew, and investigate.
Puppy Curiosity
A young puppy may explore almost anything, including:
- Toys
- Shoes
- Plants
- Dirt
- Cat litter
- Feces
This does not automatically indicate a health problem.
Teething and Oral Exploration
Teething can increase a puppy’s desire to chew and mouth objects.
Teething itself does not specifically cause coprophagia, but increased oral exploration can make inappropriate objects more tempting.
Limited Impulse Control
Puppies have not yet developed the same level of self-control as a well-trained adult dog.
A puppy may understand a command but still struggle to ignore an extremely interesting smell.
Lack of Training
Teaching appropriate behaviors early can make prevention easier.
Commands such as “leave it,” “drop it,” and a reliable recall can help you redirect a puppy before it reaches the litter box.
How to Stop Your Dog From Eating Cat Poop
The most effective approach is usually a combination of:
- Preventing access
- Training
- Positive reinforcement
- Mental and physical enrichment
- Appropriate nutrition
- Veterinary assessment when necessary
Punishment alone does not address why the dog is attracted to the litter box and can create additional behavioral problems.
1. Block Access to the Litter Box
The easiest feces for your dog to avoid eating is feces it cannot reach.
Depending on your home, you can:
- Place the litter box behind a closed door
- Use a baby gate
- Create a cat-only room
- Use pet furniture designed to restrict dog access
- Consider a top-entry litter box if your cat is comfortable using one
Always make sure your cat can comfortably and safely access the litter box.
2. Clean the Litter Box Frequently
Removing feces promptly reduces the opportunity for your dog to practice the behavior.
Try to:
- Scoop feces regularly
- Keep the litter area clean
- Maintain the litter box according to the manufacturer’s recommendations
- Keep the box in an area your dog cannot access
In homes with multiple cats, providing an appropriate number of litter boxes is also important for feline welfare.
3. Teach Your Dog “Leave It”
“Leave it” is one of the most useful commands for preventing dogs from picking up unwanted objects.
Basic Training
- Place a treat inside your closed hand.
- Allow your dog to notice the treat.
- Say “leave it.”
- Wait until your dog stops trying to reach the treat.
- Reward the dog with a different treat.
- Gradually practice with increasingly tempting distractions.
- Eventually practice the command around controlled environmental distractions.
Keep sessions short, consistent, and positive.
Do not immediately make the training exercise so difficult that your dog repeatedly fails.
4. Reward Better Choices
Positive reinforcement teaches your dog what behavior you want instead.
Reward your dog for:
- Walking away from the litter box
- Responding to “leave it”
- Coming when called
- Choosing a toy instead
- Ignoring feces during walks
- Looking at you instead of investigating something inappropriate
Rewards can include:
- Small treats
- Praise
- Toys
- Play
- Attention
The reward should be valuable enough to compete with the distraction.
5. Avoid Harsh Punishment
Yelling, hitting, or frightening your dog is not a reliable way to eliminate coprophagia.
Harsh punishment can increase fear or anxiety and may cause a dog to hide unwanted behaviors rather than stop them.
Instead, calmly interrupt the behavior, remove access, redirect the dog, and reward an appropriate alternative.
6. Increase Physical Exercise
Appropriate exercise can help provide your dog with healthier outlets for its energy.
Depending on your dog’s age, health, and individual needs, activities may include:
- Walks
- Fetch
- Play sessions
- Training exercises
- Safe outdoor exploration
Exercise needs vary considerably between dogs, so your dog’s routine should be appropriate for its health and life stage.
7. Provide Mental Enrichment
Physical exercise is only part of a dog’s needs.
Mental enrichment can provide appropriate opportunities for sniffing, searching, foraging, and problem-solving.
Consider:
- Puzzle feeders
- Snuffle mats
- Scent games
- Food-dispensing toys
- Obedience training
- Hide-and-seek games
A mentally engaged dog may have fewer opportunities and reasons to create its own entertainment around the litter box.
8. Review Your Dog’s Diet With a Veterinarian
If you are concerned about your dog’s nutrition, discuss the diet with your veterinarian.
A suitable diet should provide complete and balanced nutrition appropriate for your dog’s:
- Age
- Size
- Life stage
- Activity level
- Health status
Avoid adding supplements simply because your dog eats feces. Supplements are not automatically the solution to coprophagia.
9. Maintain a Consistent Feeding Routine
A predictable routine can make it easier to monitor your dog’s appetite and behavior.
Depending on your veterinarian’s recommendations:
- Feed appropriate portions
- Keep feeding times reasonably consistent
- Monitor changes in appetite
- Avoid excessive table scraps
- Pay attention to unexplained increases in hunger
A persistent or sudden increase in appetite should be discussed with your veterinarian.
10. Address Anxiety and Stress
If your dog appears stressed or anxious, consider whether anything has recently changed.
Helpful measures can include:
- Maintaining a predictable routine
- Providing a quiet resting area
- Increasing appropriate enrichment
- Avoiding harsh punishment
- Giving your dog a safe place to retreat
If anxiety is significant or persistent, a veterinarian or qualified veterinary behavior professional can help determine whether additional treatment is appropriate.
Best Ways to Keep a Dog Away From Cat Litter
For many households, environmental management is the most practical long-term solution.
Create a Dog-Proof Litter Area
A separate room can work particularly well.
Possible locations include:
- Bathroom
- Laundry room
- Spare room
- Enclosed pet area
The arrangement should allow the cat to enter and leave freely without feeling trapped.
Use a Baby Gate
Some gates have openings designed to allow cats through while restricting larger dogs.
However, check the size carefully. Some dogs can squeeze through surprisingly small spaces.
Consider Enclosed Litter-Box Furniture
Enclosed litter-box furniture can make the litter box less accessible to dogs while keeping it available to the cat.
However, the enclosure should provide adequate ventilation and enough room for the cat to use the litter box comfortably.
Managing a Cat-and-Dog Household
Living with both cats and dogs often requires some environmental planning.
Keep Feeding Areas Separate
Do not allow your dog to routinely eat the cat’s food.
Cat food is formulated for cats and is not intended to replace a dog’s complete and balanced diet.
Place feeding areas where the dog cannot easily access them.
Keep Litter Areas Separate
Ideally, your dog’s normal living area should not provide direct access to litter boxes.
Supervise High-Risk Situations
If your dog repeatedly tries to visit the litter box, supervision can prevent opportunities to practice the behavior while training is underway.
Protect the Cat’s Resources
Your cat should always have safe and comfortable access to:
- Food
- Water
- Litter boxes
- Resting areas
- Safe retreat spaces
A solution that prevents the dog from reaching the litter box should not make the cat feel trapped.
When Should You Take Your Dog to the Veterinarian?
Occasional coprophagia does not automatically require an emergency veterinary visit.
However, veterinary advice is appropriate when the behavior is new, persistent, excessive, or accompanied by other symptoms.
Contact your veterinarian if you notice:
- A sudden increase in appetite
- Unexplained weight loss
- Persistent vomiting
- Chronic diarrhea
- Significant lethargy
- Changes in drinking or urination
- Persistent abdominal discomfort
- Repeated or compulsive feces-eating
- Other sudden changes in behavior
Your veterinarian may ask about your dog’s:
- Diet
- Appetite
- Stool
- Medications
- Parasite prevention
- Exercise
- Behavior
- General health
Depending on the circumstances, an examination or diagnostic testing may be recommended.
Common Myths About Dogs Eating Cat Poop
Myth 1: “My Dog Is Dirty”
Dogs do not understand feces in the same way humans do.
Coprophagia can be associated with instinct, opportunity, curiosity, learning, environmental factors, or medical issues. It is not evidence that a dog is “dirty.”
Myth 2: “Eating Cat Poop Always Means My Dog Is Sick”
Not necessarily.
A healthy dog can develop coprophagia simply because it finds feces interesting or has easy access to the litter box.
However, sudden or persistent coprophagia deserves attention, especially if other health changes are present.
Myth 3: “My Dog Must Have a Vitamin Deficiency”
This is a common assumption, but it is not necessarily true.
Do not automatically give your dog supplements because it eats feces. If you suspect a nutritional or digestive problem, have your veterinarian evaluate the situation.
Myth 4: “There Is Nothing I Can Do”
There are several practical ways to reduce the behavior.
The combination of:
- Preventing access
- Training “leave it”
- Positive reinforcement
- Providing enrichment
- Maintaining appropriate nutrition
- Addressing underlying health or behavioral problems
can make a significant difference.
Myth 5: “Only Poorly Trained Dogs Eat Cat Poop”
Even well-trained dogs may occasionally investigate or eat something inappropriate when they encounter an especially tempting smell.
Training is important, but environmental management is equally important.
Are Some Dog Breeds More Likely to Scavenge?
Breed can influence tendencies such as food motivation, scent work, and exploratory behavior, but no breed is guaranteed to eat cat poop.
Individual personality, training, environment, and access to the litter box are often more useful factors to consider.
Some breeds commonly associated with strong food motivation or scent-driven behavior include:
- Labrador Retrievers
- Golden Retrievers
- Beagles
- Dachshunds
- Cocker Spaniels
- Jack Russell Terriers
Mixed-breed dogs can also be enthusiastic scavengers.
Rather than assuming that a particular breed will develop coprophagia, focus on the individual dog’s behavior and environment.
How to Prevent Coprophagia in a Multi-Pet Home
Preventing the behavior is generally easier than breaking a well-established habit.
Keep Litter Boxes Inaccessible
Use doors, gates, furniture, or other safe barriers.
Clean Litter Boxes Regularly
Remove feces as soon as practical.
Supervise Your Dog
Pay particular attention to areas where your dog repeatedly searches for feces.
Start Training Early
Teach “leave it” and reliable recall during puppyhood.
Provide Appropriate Enrichment
Give your dog healthy outlets for sniffing, chewing, exploring, playing, and foraging.
Monitor Appetite and Health
Do not ignore unexplained changes in appetite, weight, digestion, thirst, or behavior.
Long-Term Management
Stopping a dog from eating cat poop is not always an overnight process.
The most important principle is to prevent repeated opportunities while consistently rewarding better choices.
Continue Training
Even after the behavior improves:
- Practice “leave it”
- Reward appropriate behavior
- Reinforce recall
- Keep litter areas protected
Maintain Appropriate Nutrition
Feed a complete and balanced diet suitable for your dog’s life stage and health needs.
Keep Your Dog Mentally Active
Regular enrichment provides healthier alternatives to scavenging.
Maintain a Predictable Routine
Consistent exercise, feeding, rest, and interaction can help support stable behavior.
Continue Environmental Management
Even if your dog appears to have stopped eating cat poop, unrestricted access to the litter box can allow the behavior to return.
Frequently Asked Questions
Why does my dog eat cat poop?
Dogs may eat cat feces because of scavenging instincts, curiosity, food motivation, easy access, boredom, learned behavior, or occasionally an underlying medical problem.
Is it dangerous if my dog eats cat poop?
It can carry health risks because feces may contain bacteria, parasites, and other infectious organisms. Many dogs remain healthy after an isolated incident, but repeated ingestion should be prevented.
What should I do if my dog just ate cat poop?
Stay calm and prevent your dog from getting back into the litter box.
Monitor your dog for vomiting, diarrhea, lethargy, abdominal discomfort, loss of appetite, or other unusual symptoms.
Do not induce vomiting unless your veterinarian specifically instructs you to do so.
If your dog develops severe or persistent symptoms, contact your veterinarian.
How do I stop my dog from eating cat poop?
The most effective approach is usually a combination of:
- Blocking access to the litter box
- Cleaning the litter box frequently
- Teaching “leave it”
- Rewarding appropriate behavior
- Providing physical and mental enrichment
- Addressing any underlying medical or behavioral problems
Why does my dog keep going back to the litter box?
If the behavior is rewarding, repeated access can turn it into a habit.
Every successful trip to the litter box can reinforce the behavior. This is why preventing access is particularly important while you are training your dog.
Is coprophagia normal in puppies?
Puppies commonly explore their surroundings with their mouths, so occasional feces-eating can occur.
However, it is still worth preventing the behavior early because repeated opportunities can allow it to become a learned habit.
Will my dog eventually grow out of eating cat poop?
Some dogs may lose interest as they mature and receive appropriate training.
Others continue the behavior unless owners manage access and reinforce alternative behaviors.
There is no guarantee that a dog will simply outgrow coprophagia.
Should I change my dog’s food?
Not automatically.
If your dog is eating a complete and balanced diet and is otherwise healthy, changing food may not solve the problem.
If your dog also has weight loss, persistent diarrhea, excessive hunger, poor stool quality, or other health concerns, speak with your veterinarian about whether the diet or an underlying medical problem should be investigated.
Can cat litter make my dog sick?
Yes, particularly if the dog consumes a substantial amount.
In addition to exposure to fecal material, swallowing large quantities of litter can cause gastrointestinal problems and potentially more serious complications.
Contact your veterinarian if your dog has consumed a large amount of litter or develops concerning symptoms.
Conclusion
Dogs eating cat poop is unpleasant, but it is usually a manageable behavior.
It does not automatically mean that your dog is sick, poorly trained, or lacking vitamins.
Dogs may be attracted to cat feces because of their natural scavenging instincts, curiosity, food motivation, interesting smells, boredom, learned behavior, or simply easy access to the litter box.
The most effective solution is usually not a single trick. Instead, focus on preventing access to the litter box, teaching your dog behaviors such as “leave it,” providing enough physical and mental enrichment, and rewarding appropriate choices.
If the behavior is sudden, persistent, or accompanied by increased appetite, weight loss, digestive problems, or other changes in health, talk with your veterinarian.