Skip to main content

Did you find worms in your dog’s poop? Here’s how to identify and treat them

Parasitic worms can cause real problems in pets — here's how to treat them and take care of your furry friend

Dog runs through the grass outside
Image used with permission by copyright holder

Keeping our dogs regular is a fundamental part of pet ownership and is usually pretty easy. Their food includes all the nutrients they need plus maybe a built-in probiotic to help maintain digestion. Sometimes, though, you’ll suddenly find your pup has diarrhea, and you’ll have to figure out exactly what’s going on inside. While there are a number of different possible causes, it could be worms, which can turn serious and even into a life-threatening situation if left untreated.

What are parasitic worms?

When we’re talking about worms here we don’t mean the kind in your yard and we also aren’t including heartworm and ringworm. The type that usually leads to vomiting and diarrhea are intestinal parasites, meaning they’re living in your pup’s gut. There are a bunch of different worms in dogs out there but the most common in dogs are hookworm, whipworm, tapeworm, and roundworm. Each can have slightly varied effects but likely all include problems with your pet’s poop.

Recommended Videos

How do I know if my dog has worms?

Remember vomiting and diarrhea are symptoms of a lot of issues in dogs, everything from eating something they shouldn’t have to serious illnesses, like cancer. The best thing to do is call your vet. They will likely have you bring in a stool sample to test for parasites and possibly other conditions — sometimes our animals catch a tummy bacteria from other dogs that’s easy to treat with antibiotics.

Where do they catch worms?

Sadly, some puppies are born with them and that’s when they’re most fatal, too (particularly hookworms in dogs). In adulthood, your animal might get them from dirt, poop, a rodent, fleas, or another infected pet. It’s best to test your pet before bringing them home or make sure the adoption agency or breeder has thoroughly ruled out worms in dog poop. Even then, you might include a fecal examination as part of a routine screening during their first checkup.

How do I go about identifying dog worms?

Some worms are easy to spot with the human eye, and if you notice something in Fido’s poop, you should keep it for later and bring it to the vet. Otherwise, you won’t always necessarily see the worms, but you’ll notice the effects clearly. When you bring in a stool sample, the tests will determine the type of worm, which also can influence treatment.

How do I treat dog worms?

The best way to take care of worms is with preventatives. Check your heartworm or flea medicine to see if they already contain the right chemicals to keep them at bay. That way, the parasites never have a chance to take root inside your beastie at all. However, once the bugs set in, you might need an additional dewormer to get them out. Your vet will prescribe this, possibly over the course of many months.

Owner petting dog at vet
Sergey Mikheev / Alamy

We say this a lot, but the best defense is a good offense when it comes to worms in dogs. If you’re already paying for preventatives, you can look around and see which ones kill the most worms. One note, cats and dogs sometimes do share parasites if they live in the same household. If you find that your pup has caught one of these, you’ll need to look at your other pets, too.

Rebekkah Adams
Rebekkah’s been a writer and editor for more than 10 years, both in print and digital. In addition to writing about pets…
Here’s why old dogs have seizures and how you can best help them
A seizure looks scary but you and your pup can manage through them together
Chocolate brown Labrador retriever with a graying muzzle

With their graying muzzles and laid-back demeanors, old dogs have a dignified air you don't see in young, hyper puppies. You've been through a lot with your dog, and you want to ensure he maintains the best quality of life for as long as possible.

Seeing your old dog having seizures is alarming, but we have some good news. While your pup may feel frightened and confused during a seizure, he's not in any pain. Whether your dog has a history of seizures or this is the first one he's had, here's what you need to know about seizures in older dogs. 
Is it common for old dogs to have seizures?

Read more
How to find the shelter dog that fits your lifestyle
Choosing the perfect shelter pup
Young woman choosing dog at a shelter

So, you’ve decided to welcome a shelter dog into your heart and home. Good for you! Too many people buy into the myth that if you adopt a pet from a shelter, you’re inheriting someone else’s problem. The truth is that most dogs end up in shelters because of human problems such as divorce, abandonment, or families having no time for the dog.

Most shelter dogs are happy, healthy, and well-behaved pets. They're just waiting for someone like you to offer them a loving home! Finding a shelter dog that fits your lifestyle does take time, but in return, you get to share your home with a devoted companion. But how can you know which shelter dog is the one for you?
Why you should adopt a dog from a shelter

Read more
Is pumpkin bad for dogs? What you need to know
How to safely prepare pumpkin for your hungry pup
Two Pembroke Welsh corgis chew on a pumpkin on an autumn picnic

Every year, as autumn rolls around — or even during late summer — pumpkin-flavored, everything starts to take over. If you’re a pumpkin-obsessed human (looking at you, latte lovers and candle sniffers), this is great news, but can dogs eat pumpkin?

You’re about to find out! In this article, we’ll get up to date on everything pumpkin: Why it’s good or bad for dogs, how much to feed your furry friend per serving, and even a few ways to prepare this fun autumn food. If you keep a few rules in mind, the possibilities and recipes can be nearly endless. Whether you're eating to celebrate Halloween, Thanksgiving, or even the weekend, pumpkin can make the perfect addition for your pup. Let’s dive in.
Can dogs eat pumpkin?

Read more