Why Does My Dog Eat Other Dogs’ Poop on Walks?
If your dog lunges toward another dog’s poop on your morning walk, you are definitely not alone. This behavior is one of the most common — and honestly most cringe-worthy — things dog owners deal with. It can feel gross, confusing, and a little alarming all at once.
The truth is, this habit is more common than most people realize. Dogs have a deeply instinctive relationship with scent and waste, and eating feces (a behavior called coprophagia) is something millions of dogs do. That doesn’t make it less disgusting, but it does mean there are real reasons behind it — and real solutions.
In this article, you’ll get clear, practical guidance on why your dog does this, whether it’s dangerous, and exactly what you can do to stop it. No judgment here — just honest, helpful advice to make your walks way less stressful.
Quick Answer: Why Your Dog Eats Poop on Walks
Dogs eat other dogs’ poop on walks due to a mix of instinct, curiosity, nutritional gaps, or learned behavior. It’s called coprophagia and is rarely a sign of a serious medical problem, but it can expose your dog to parasites and bacteria. Most cases can be managed with training, diet adjustments, and consistency.
- It’s a natural but unwanted behavior rooted in instinct
- Some dogs do it out of curiosity — poop carries strong scent information
- Nutritional deficiencies or enzyme imbalances can drive the habit
- Boredom, anxiety, and attention-seeking are also common triggers
- It can spread parasites, bacteria, and viruses between dogs
- Training, supervision, and dietary support are the most effective fixes
- Most dogs can be redirected and retrained with patience and the right approach
What Is Coprophagia and Is It Normal?
Coprophagia is the technical term for when a dog eats feces — their own or another animal’s. It sounds alarming, but veterinarians consider it a relatively common behavior, especially in otherwise healthy dogs.
According to a study published by the American Veterinary Medical Association, around 16% of dogs are considered “serious” stool eaters, meaning they’ve been caught doing it more than five times. Another 24% have done it at least once.
So if your dog has snacked on a stranger dog’s deposit at the park, they are in very large company. The key is understanding why it’s happening so you can address the root cause.
Why Dogs Eat Other Dogs’ Poop on Walks
There’s rarely just one reason. Most of the time it’s a combination of instinct, environment, and habit. Here are the most common causes:
Natural Instinct and Scent Curiosity
Dogs experience the world through their nose first. Other dogs’ poop is packed with chemical information — what the other dog ate, their health status, even their stress levels.
Some dogs take that curiosity one step further and actually eat it. It’s a throwback to ancestral behavior where wild canines would clean up waste around den sites.
Nutritional Deficiencies or Poor Diet
If your dog isn’t absorbing enough nutrients from their food, they may seek out alternatives. Poop from other dogs can contain partially digested food that smells appealing to a hungry or malnourished dog.
- Low-quality kibble with poor digestibility is a common culprit
- Enzyme deficiencies can prevent proper nutrient absorption
- A lack of B vitamins, specifically thiamine, has been linked to coprophagia
Boredom, Anxiety, or Attention-Seeking
Some dogs eat poop because they’ve learned it gets a big reaction from their owner. Even negative attention — gasping, yelling, chasing — can accidentally reinforce the behavior.
Dogs that are under-stimulated or anxious may also mouth and eat things they shouldn’t as a coping mechanism. I’ve seen this happen most often in high-energy breeds that aren’t getting enough mental exercise.
Learned Behavior
If your dog watched another dog do it, or did it once and enjoyed the result (or got no correction), they may simply have learned that this is an option. Dogs are opportunistic and fast learners — in both good and bad directions.
Is It Dangerous for Your Dog?
This is a really important question. Eating another dog’s poop isn’t just gross — it does carry some genuine health risks.
Potential health risks include:
- Intestinal parasites — roundworms, hookworms, whipworms, and giardia can all be passed through feces
- Bacterial infections — including salmonella and campylobacter
- Viral transmission — parvovirus can survive in feces and infect unvaccinated or immunocompromised dogs
- Medication exposure — if the other dog is on medication, traces can appear in feces
The risk level depends on how often your dog does this and whether the dogs whose poop they’re eating are healthy and vaccinated. That said, no level of poop-eating is truly “safe,” so it’s worth taking steps to stop it.
If your dog is eating poop regularly and showing signs of digestive upset, lethargy, or weight loss, please talk to your vet as soon as possible.
How to Stop Your Dog From Eating Poop on Walks
The good news is that this behavior is very manageable with the right combination of training, supervision, and support. Here’s a step-by-step approach that actually works:
- Walk with a short leash. Keep your dog close enough that you can redirect them before they reach any poop on the ground. A short training leash gives you much better control on busy walks.
- Teach a solid “leave it” command. This is genuinely one of the most useful things you can train your dog to do. Practice at home first, then bring it to walks. Reward generously every time they listen.
- Use high-value treats as a trade. The moment your dog starts sniffing toward poop, redirect their attention with a smelly, delicious treat. Make listening to you more rewarding than the poop on the ground.
- Don’t react dramatically. If you gasp, yell, or run over in a panic, your dog may see this as exciting attention. Stay calm, redirect, and reward.
- Scan ahead on walks. Get in the habit of looking a few feet ahead so you can steer around poop before your dog even reaches it. Prevention is so much easier than correction.
- Consider a deterrent spray or supplement. Some dog owners find that adding a coprophagia deterrent supplement to their dog’s food makes their own stool less appealing — though this won’t stop them from eating other dogs’ waste directly.
- Review your dog’s diet. Talk to your vet about whether your dog’s current food is meeting their nutritional needs. Switching to a higher-quality, more digestible food sometimes resolves the behavior on its own.
Training Tips That Actually Help
Training is your most powerful tool here. I think a lot of dog owners underestimate how quickly dogs can learn to leave poop alone when the training is consistent and rewarding.
Build a Strong “Leave It”
Start by placing a low-value treat on the floor. Cover it with your hand. When your dog stops trying to get it and looks away, reward them with a different, better treat. Gradually work up to leaving items uncovered, then practice outdoors with real distractions.
Reward the Look-Up
Every time your dog sniffs toward something on the ground and then looks back at you, reward that behavior enthusiastically. You’re teaching them that checking in with you is more rewarding than investigating gross stuff.
Use a Muzzle During Heavy Training Phases
If your dog is a very persistent poop-eater, a comfortable basket muzzle can keep them safe while you work through training. It’s not a punishment — it’s a management tool that protects their health.
When to Talk to Your Vet
Most cases of coprophagia are behavioral and manageable at home. But there are times when a vet visit is the right move.
Talk to your vet if:
- The behavior started suddenly in an adult dog who never did it before
- Your dog is losing weight, has low energy, or shows digestive issues
- You suspect a nutritional deficiency or malabsorption issue
- Your dog has eaten poop from a dog of unknown vaccination status
- Nothing you’ve tried is making a difference after several weeks
Your vet can run bloodwork or a fecal test to rule out medical causes and give you a personalized plan. It’s always better to ask than to wonder.
Frequently Asked Questions About Dog Eating Other Dogs’ Poop on Walks
Is It Normal for Dogs to Eat Other Dogs’ Poop?
Yes, it’s a fairly common behavior called coprophagia. Studies suggest roughly one in six dogs does it regularly. It’s rooted in instinct but can also be reinforced by diet issues, boredom, or habit. It’s normal, but still worth addressing for your dog’s health.
Can My Dog Get Sick From Eating Another Dog’s Poop?
Yes, there are real health risks. Your dog can pick up intestinal parasites like roundworms or giardia, bacterial infections, and even viruses like parvovirus. The risk is higher if the other dog’s vaccination and parasite prevention status is unknown.
Why Does My Dog Only Eat Poop on Walks and Not at Home?
On walks, your dog encounters poop from many different dogs, each with unique scents and diets. That novelty can be very attractive. At home, your dog is more familiar with their environment and less stimulated by new smells and distractions.
Will My Dog Grow Out of Eating Poop?
Puppies sometimes eat poop out of exploration and do grow out of it. But adult dogs who develop the habit rarely stop on their own without training and intervention. Consistent redirection and management are usually needed to break the cycle.
What Can I Put in My Dog’s Food to Stop Them Eating Poop?
Some vets recommend adding digestive enzyme supplements or probiotic blends to support better nutrient absorption. Coprophagia deterrent supplements are also available, but they work best for stopping a dog from eating their own poop rather than other dogs’ feces.
Should I Punish My Dog for Eating Poop on Walks?
No, punishment is not effective here and can make anxiety-driven cases worse. Focus on positive redirection — rewarding your dog for choosing to look away and come to you instead. Calm, consistent training will get you much further than scolding.
You’ve Got This — And So Does Your Dog
Finding out your dog eats other dogs’ poop on walks is genuinely unpleasant to deal with — but it’s one of the most solvable problems in dog ownership. With a little understanding of why it happens, some consistent training, and maybe a diet review with your vet, most dogs improve significantly within weeks.
Your simple next step today? Practice the “leave it” command for just five minutes at home using treats. That one skill, built up consistently, can transform your walks. You and your dog deserve stress-free time outside — and with a little patience, that’s exactly what you’ll have.