3 Things You Never Knew About Dog Poop (And Why They Matter)

Updated September 2026

Your pup gives you plenty to smile about. Their poop probably isn't on that list.

Still, some dogs find stool worth investigating. A quick redirect may be enough when your bestie is simply curious. If they regularly eat their own stool, or stool from another animal, the behavior deserves a closer look, since the risks differ depending on which it is.

It's called coprophagia, and it can have behavioral or medical causes. Eating stool can also expose your pup to harmful bacteria or parasites, particularly when it comes from other animals rather than their own.

Here are three things about dog stool that can help you understand the risks and know when to ask your veterinarian for guidance.

1. What's Behind Undigested Material in Stool

What goes into your dog's bowl affects what comes out, but how well they digest it matters just as much. When a dog has trouble digesting food or absorbing nutrients, some undigested material may remain in their stool. In some cases, this may make it more appealing to investigate or eat. But stool eating alone doesn't mean your dog has a digestive problem or needs a different diet.

If your pup regularly eats their own stool, talk with your veterinarian. They can help explore possible causes and determine whether dietary changes, digestive support, or a plan to manage the behavior may be appropriate.

2. Stool Color Says a Lot

A pile of stool usually gets bagged and forgotten without a second look, but it's worth pausing for a moment first. The color alone can tell you something useful to share with your veterinarian.

Brown is generally the expected color. Other colors may reflect something your dog ate, but they can also signal a health concern. Color alone can't tell you the cause, so pay attention to changes in consistency, frequency, and how your dog is feeling, too.

Use the chart as a quick reference, not a diagnosis. Contact your veterinarian promptly if your dog's stool is black and tarry or contains visible blood. Pale stool or a persistent unusual color also deserves veterinary advice, especially if your dog seems unwell.

3. What's Really in Dog Waste

Picking up after your pup does more than keep shoes and sidewalks clean.

Dog waste can contain harmful bacteria and parasite eggs. When rain carries waste into storm drains and waterways, those organisms and excess nutrients can affect water quality.

Eating another dog's waste also carries a different kind of risk than eating their own. Your dog's system already has some familiarity with their own gut bacteria, but another animal's stool, or waste left behind by wildlife on a walk or in the yard, can expose them to bacteria or parasites they haven't encountered before. Prompt cleanup helps reduce exposure for people and animals. It also removes an opportunity for your dog to eat stool in the first place. Pick up waste in your yard and on walks, dispose of it properly, and wash your hands afterward.

If your pup heads toward stool on a walk, whether it's their own or another animal's, calmly guide them away and reward them for following you. Supervision and limiting access are important parts of managing the habit either way.

Frequently Asked Questions

Is it normal for dogs to eat poop?

Occasional investigating, sniffing, or even a one-off taste isn't unusual, especially in puppies. It becomes a pattern worth addressing when it happens regularly rather than as a rare curiosity. If your dog eats stool often, whether their own or another animal's, it's worth a conversation with your veterinarian rather than assuming it's just a phase.

Why do dogs eat their own poop?

Causes range from behavioral habits picked up as puppies to underlying digestive issues, such as undigested nutrients making stool more appealing or an imbalance in gut bacteria. Stress and attention-seeking can play a role too. Your veterinarian can help narrow down what's actually driving it for your dog.

How do I stop my dog from eating poop?

Prompt cleanup, consistent supervision, and calmly redirecting your dog away from stool on walks are the most reliable starting points. A stool-eating deterrent, like Chew No Poo Bites, can help for some dogs. Talk with your veterinarian if the behavior continues despite consistent management, since an underlying cause may need addressing directly.

When should I worry about my dog eating poop?

Occasional, mild stool eating usually isn't an emergency, but persistent eating, especially from other animals, raises the risk of parasites or harmful bacteria. Contact your veterinarian if the behavior is frequent, if your dog seems unwell afterward, or if you notice changes in appetite, energy, or stool alongside it.

Helping Your Pup Leave Poop Behind

These facts show why stool eating is worth paying attention to. Start with prompt cleanup and supervision, and work with your veterinarian to explore possible causes.

If a deterrent is appropriate for your dog, our Chew No Poo Bites™ for Dogs may help discourage them from eating their own stool. The formula includes Capsimax®, a capsicum extract that may make their stool taste less appealing, along with probiotics and enzymes to support digestion.

The deterrent effect is intended for stool from the dog receiving the chews, not every pile your pup encounters, including other animals' waste on a walk. Results can vary, so follow the current package directions and keep cleanup, supervision, and positive redirection part of the routine.

Have questions about Chew No Poo Bites? Contact our Customer Care team at 1 (800) 738-0661 or bark@zestypaws.com. For persistent stool eating, changes in stool, or other health concerns, your veterinarian is the best place to start.