Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

9 Fascinating Dog Poop Facts (Vet-Reviewed)

Yorkshire Terrier dog pooping

Do you think you know all about dog poop? Think again! While you may think you know all you need to know about your dog’s waste (because what do you need to know other than that picking it up is icky?), there are some pretty fascinating facts about this topic. For example, were you aware that dog poop can take between 9 weeks and 12 months to break down?  Why is there such a difference?

We’re here to share some of these fascinating dog poop facts that you might not know. If you want to learn more about your dog’s waste (including how it can tell you more about your pup’s health), keep reading!

divider single dog paw oct 2024

The 9 Fascinating Dog Poop Facts

Here are nine fascinating dog poop facts that will give you all the information you ever wanted to know!

1. A dog will poop about 276 pounds of waste each year.

Wow, that’s a lot of poop! This is only one reason (of many) why picking up your dog’s waste is vital. Imagine if no one picked up after their dogs in your town or city; how many canines do you think there are where you live? Multiply that number by 276, and imagine all that poop just lying around! The negative health implications would be numerous (not to mention the visuals would be gross). So, make sure you’re picking up your dog’s poop each time you walk them.

man-picking-up-dog-poop-with-plastic-bag
Image Credit: Monika Wisniewska, Shutterstock

2. Healthy dogs tend to poop one to three times each day.

Every dog is an individual, though, so this can vary. Several factors affect how often a dog goes to the bathroom in a day, like their age, how active they are, how much they eat, and the quality of their diet. However, your dog should poop at least once a day. If they haven’t pooped in a couple of days, and you know they have been eating, then they’re likely constipated, and if that’s the case, they should see their vet. Constipation can lead to obstipation, whereby they feces become so firm and dry that they cannot be passed.  Prolonged obstipation can lead to megacolon, where the walls of the colon become stretched and therefore don’t work as they should.

Seek veterinary advice if you’re concerned about your pet’s well-being.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1


3. Dog poop may take up to 12 months to completely break down.

Now, not all a dog’s waste will take up to a year to decompose; how quickly this happens depends on what the temperature and weather are like (poop breaks down faster in hotter weather) and what’s in your pup’s diet (those eating more protein will have poop that takes longer to decompose).  Also, where the poop is laid is a contributing factor; poops laid on soil will break down quicker than those laid on lawns or concrete.  So, a dog’s waste could take as little as 9 weeks to break down completely, or it could take up to 12 months (sometimes even longer). This is just another reason not to leave your pet’s waste lying around!

Labrador retriever dog poops in the green park
Image Credit: SasaStock, Shutterstock

4. Dog waste isn’t suitable as fertilizer.

Some people believe that since cow manure works as fertilizer, dog poop must too, which means it’s fine to leave it lying on your lawn. It seems logical, but dog waste is absolutely not a suitable fertilizer! Why not? For a handful of reasons, not least of which is because dog poop kills grass. Dogs eat a lot of protein which is broken down within the body.  The by-product of this breakdown is nitrogen.  Nitrogen rich feces and urine concentrated in small areas of the lawn will kill the grass.

The other reasons dog poop doesn’t work as fertilizer? Because it can cause lawn fungi to flourish, is full of bacteria, and can pollute local water sources.


5. The Environmental Protection Agency (EPA) labels pet waste (including dog poop) as a pollutant.

Dog poop and other pet waste can severely impact water sources, particularly when it involves storm runoff. The EPA lists pet waste among fuel, oil, pesticides, and antifreeze as some of the most common pollutants in storm runoff that get into local water sources. Pet waste that ends up in local water sources can kill fish and plants, as well as carry diseases that can make water unsafe for people and animals.

So, if you sometimes dump your pup’s waste into a storm drain after you pick it up, please don’t do that again! It will be safer for everyone.

person picking up dog's poop
Image Credit: antoniodiaz, Shutterstock

6. An entire day’s poop from a 40-pound canine can contain 7.8 billion fecal coliform bacteria.

Yes, billion. This is one type of bacteria found in a dog’s poop that can seriously impact local water sources. In fact, the EPA did a study in 1993 that found only 2 to 3 days’ worth of poop from around 100 dogs inside of a 20 square mile area could result in enough bacteria to shut down a bay to swimming and shell fishing. Just one more reason you don’t want to leave your pup’s waste lying out and about!


7. You can use the four C’s to evaluate your dog’s poop.

What are the four C’s? Color, consistency, content, and coating. The color of your canine’s poop can tell you everything from whether they’re eating a lot of grass to if they’re having issues with their liver. The consistency can tell you whether your pup needs to visit a vet or not. The content of their waste can let you know if your dog has eaten something they shouldn’t or if they have worms. And whether there’s a coating of mucus on your pet’s stool can also indicate whether a vet visit is needed. You may want to take a quick look at your dog’s poop after they go to ensure all is well!

You are free to use this image but we do require you to link back to Dogster.com for credit

8. Your dog’s vet can learn tons from their poop.

Your pet’s veterinarian can learn a lot from their poop. They can detect intestinal bleeding and inflammation, determine if your dog has parasites, see if your pup is constipated or dehydrated, and so much more! It’s advisable to have routine fecal testing for your pup, but talk with your vet to find out how often they feel is a good idea for this. Regular fecal testing ensures you and your vet stay on top of your dog’s health and find things sooner rather than later.


9. Interestingly, canines may prefer pooping in the north/south direction instead of east/west.

Some, but not all, canines poop in line with Earth’s magnetic field (at least, according to this study). Nobody seems quite clear on why this happens, but it’s definitely a fascinating fact! Next time you’re in the yard with your pup while they’re doing their business, see which direction they’re facing to find out if they’re an outlier or not.

divider dog faces oct 2024

Conclusion

See? Dog poop is much more interesting than you imagined! It’s still pretty gross, though, but no matter how icky it may be, remember to always pick up your pup’s poop when you’re out and about. Canine waste has a lot of bacteria that can cause a host of issues in the local ecosystem if it isn’t bagged and thrown out properly. You should also pick it up out of your yard, too, as it can destroy grass and can still enter the waterways through rain run-off.

Be sure to share this info with your friends and family so they become just as knowledgeable as you!

See also:


Featured Image Credit: Stowen Seto, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Much Do Huskies Shed? Breed Coats Characteristics

We love our dogs, but that doesn’t mean that cleaning up after them isn’t a hassle. If you are looking for a low-shedding...

8 Best Dog Backpack Carriers in 2025 – Reviews & Top Picks

If you’re on the move and your dog cannot keep up, or you’re in an area that’s not safe for your pooch to...

Dog Trick Training: 7 Vet-Verified Benefits for Pup & Human

Everyone knows that training dogs in basic commands is important. After all, these commands make your dog much more manageable. However, what about...

Happy Birthday, Jelly: Celebrating 14 Years With Me

Hi, I’m Allison! Read my introduction to learn more about me and my three mixed-breed dogs from Thailand, Jelly, Lorraina, and Manic. Does...

More related

6 Common Health Problems in Shiba Inu Dogs to Be Aware Of

Shiba Inu dogs are an ancient Japanese breed. They’re energetic, with bold and confident personalities, and were once employed as hunters. It’s thought...

Shepadoodle (German Shepherd & Poodle Mix): Info, Pictures, Care & More

This mixed breed is a cross between a German Shepherd and a Poodle. They are extremely intelligent, active dogs. They can make great...

Why Do Dogs Bark At Fireworks? 6 Reasons & How to Help (Vet Reviewed)

Many dog owners dread certain holidays throughout the year because of the use of fireworks during those times. Independence Day, Labor Day, and...

How to Manage Territorial Aggression in Dogs: Causes & Vet-Approved Tips

Does your dog incessantly bark at every single thing that even comes remotely close to the house or yard? Whether it’s a little...

Keep reading

Answers Dog Food Review 2025: Recalls, Pros & Cons

Review Summary You may have heard of raw dog food, but have you heard of fermented dog food? Fermented foods are packed full of health benefits, providing your dog with the nutrition they need. Answers dog food has brought fermented...

Dogster_Answers Dog Food Review

Do Dogs Like Dog Food? Canine Taste Buds Explained

We all know how excited our dogs can get at food time. They hear their kibble bag rustling or the sound of a food can opening and come running from wherever they are in the home to eat their meal....

bulldog eating fresh food

9 Best Elevated Dog Bowls in 2025 – Review & Top Picks

Elevated dog bowls have certainly increased in popularity over the last few years—and why wouldn’t they? They are aesthetically pleasing, they reduce mess, and they improve your dog’s dining experience. If you have your feelers out for an amazing set...

Havanese dog eating from a raised bowl

8 Vet-Reviewed Signs You Are Underfeeding Your Dog

We all know how important our dog’s diet is to their health and wellbeing. There are mountains of information regarding the perils of canine obesity, and the health problems associated with it. However, we tend to see decidedly less information...

Thin underweight dog

Can Dogs Eat Goji Berries? Vet-Verified Facts & FAQ

If there’s one so-called superfood that’s made a big splash in the last few years, it’s goji berries. Known for their sour flavor and bright red color, goji berries are a popular addition to salads, smoothies, or a super snack...

Can Dogs Eat_goji berries

Can Dogs Eat Walnuts? Vet-Verified Facts & Safety Tips

Dogs can eat many foods that humans eat, and you can enjoy sharing a variety of snacks with your dog. However, in most cases, dogs should refrain from eating nuts and seeds, including walnuts. While walnuts in themselves aren’t toxic...

Can Dogs Eat Walnuts

What Fruits Can Dogs Eat? 13 Vet-Approved Options

Summer is right around the corner, and if you’re anything like me, you’re probably excited about all the in-season fruits you’ll be able to eat soon. You might also be curious about which fruits, if any, are safe to offer...

Labrador retriever dog eats watermelon from hands

Can Dogs Eat Goat Meat? Vet-Approved Facts & FAQ

Dogs are facultative carnivores, meaning they can be quite adaptable when it comes to food. Although their ancestors evolved to eat a primarily carnivorous diet, dogs can do well on diets that have a lot of, a little of, or...

Can Dogs Eat Goat Meat