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.

My Dog Is Constipated & Throwing Up, What’s Wrong? Our Vet Answers

jack russell terrier dog vomiting outdoor

When your dog has two major health signs occurring simultaneously, they should see the vet. Constipation and vomiting together can be due to several potentially serious causes, with the main one being an intestinal obstruction. Visit your veterinarian if your dog isn’t having regular bowel movements or if they seem to be pained or strained when they do so. You should also go straight to the vet if your dog has vomited more than once or is showing any other clinical signs.

dogster paw divider

What Does Vomiting With Constipation Mean in Dogs?

There are many causes of constipation and of vomiting in dogs. Here are a few possibilities for each.

Constipation in Dogs

A constipated dog has difficulty passing feces or isn’t passing it as regularly as usual. They may strain or cry out when they try to do so. Constipation can be brought on by multiple factors, including dehydration, certain medications, inadequate exercise, parasites, or various things related to the colon, such as inflammation, nerve dysfunction, or masses that block passage. Constipation can also happen when a pup eats something that they shouldn’t have and develops an obstruction that partially or completely blocks feces from moving through.

a Great Dane pooping outside on grass
Image Credit: Victoria Rak, Shutterstock

Vomiting in Dogs

Vomiting is the stomach’s way of getting rid of something that’s unpleasant. Dogs may vomit when they eat something that they shouldn’t have and that is irritating, such as table scraps or spoiled food. Dogs can also vomit when they have a digestive illness that creates nausea or an upset stomach or when they’re experiencing something outside of the digestive system, such as liver or kidney disease.

Vomiting may also occur when a dog has an intestinal obstruction due to the irritation and backup of ingesta that has no place else to go.

If you are concerned about your pet’s well-being, we recommend you contact a veterinarian.

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

dogster paw divider

The 4 Causes of Vomiting and Constipation in Dogs

There are a few commonalities between the two side effects that should be examined in further detail.

1. Intestinal Obstruction

If your pup is vomiting and constipated, you might suspect an intestinal obstruction, which means you should get them to a vet. Intestinal obstructions are emergencies and should be seen as soon as possible. They occur when an indigestible object is eaten and it can’t move through the digestive tract. Obstructions don’t always have to be caused by something big; linear objects like string or even a collar can also get lodged in the intestines.

When such things get stuck, they partially or completely block the ingesta coming up behind it from getting out. This can lead to straining to defecate and smaller than normal or infrequent bowel movements—signs common with constipation.

As things attempt to move along, vomiting can also start, possibly due to the irritation that the digestive system is going through and the backup of the digestion. Dogs may also have stomach pain, a decreased appetite, and dehydration if it’s been happening for a while.

See your vet immediately, as some obstructions can be resolved with medications, but others require surgery.

Dog vomit in the living room on the floor
Image Credit: Cunaplus, Shutterstock

2. Gastroenteritis

Gastroenteritis is the medical term for an upset digestive system. It typically means both the stomach and the intestines are going through something. Gastroenteritis has many causes, including infections, parasites, medications, or a change in diet—including eating something that they shouldn’t have.

With most cases of gastroenteritis, you will see vomiting and diarrhea, but some dogs may appear constipated after a severe bout of diarrhea. They may strain because they are still feeling the urge to defecate, but they may not pass any feces or only pass a small amount infrequently because the digestive tract has already emptied out.

You may also notice a fever, stomach pain, inappetence, and dehydration with gastroenteritis. See your vet as soon as possible to get the irritation under control.

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

3. Parasites

Parasites like heavy worm burdens not only harvest nutrition and blood from dogs, but they can also lead to constipation and vomiting. Puppies are especially prone to this issue due to their small size and the ability for adult worm bodies to form a ball that blocks the intestines.


4. Severe Constipation

Severe cases of constipation, of whatever cause, can lead to vomiting because the body can’t get rid of feces, potentially increasing toxins in the system and backing up digestion. If your dog is constipated, with or without vomiting, see a veterinarian to get the issue treated as soon as possible.

American Pitbull pooping in grass
Image Credit: LookerStudio, Shutterstock

divider dog paws 2 oct 2024

What Should I Do If My Dog Is Constipated and Vomiting?

The short answer is to see your veterinarian as soon as possible. Both issues can lead to major complications if they aren’t treated, and they can be caused by severe health problems that you want to get under control quickly. Make a note of any other signs that your dog may be showing, such as not eating, stomach pain, or a previous episode of diarrhea.

Your vet may need to do bloodwork, a fecal analysis, a urinalysis, or imaging, especially if they suspect that a foreign object is the culprit. Depending on the cause, your pup might need medications to help settle an angry digestive system or surgery to resolve an intestinal blockage. Some dogs may even require hospitalization to fix dehydration or to get severe vomiting under control.

Frequently Asked Questions (FAQ)

How Long Is It Okay for a Dog to Be Constipated?

Most vets will let a dog go 48 hours without a bowel movement before they request to see them. However, if your pup is showing other signs, such as vomiting, a fever, dehydration, or stomach pain, bring them in right away.

How Can I Relieve My Dog’s Constipation Fast?

Mild cases of constipation may be treated at home by increasing a dog’s water intake and possibly giving them fiber. Plain canned pumpkin, canned food, exercising, or encouraging water drinking can all help. However, if your dog has constipation with other signs or if the constipation isn’t relieved in 48 hours, see your vet.

Labrador Retriever pooping on the grass
Image Credit: Wasitt Hemwarapornchai, Shutterstock

divider dog paws 2 oct 2024

Conclusion

Vomiting and constipation often warrant a veterinary visit when they present by themselves. When they show up together, especially when accompanied by not eating, a fever, or stomach pain, visit your veterinarian immediately. You will want to get these issues corrected before they become severe and cause other potentially serious issues.


Featured Image Credit: Enrico Spetrino, Shutterstock

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

12 Dog-Friendly Hiking Trails in San Antonio (With Pictures)

Are you looking for fun activities in San Antonio when summer rolls around? Why not take your pup on a hiking trail? With...

Plott Hound Dog Breed: Info, Pictures, Facts, & Traits

The Plott Hound is a sleek, spry, and devout companion known for their short brindle coats and athleticism. Bred to hunt big game,...

Bolognese Dog Breed: Info, Pictures, Facts & Traits

The Bolognese dog is a small, white, fluffy dog that originally came from Italy. They’re known for being gentle and affectionate, making them...

Do Chihuahuas Bark a Lot? How Much & How to Stop It

If you want to adopt a Chihuahua, there’s one thing you should know: these dogs like to bark. A lot. At the same...

More related

How Strong Is a Cane Corso’s Bite Force? Vet-Verified Facts & PSI Measure

The Cane Corso is a breed of Italian Mastiff with an estimated bite force of somewhere around 300–400 PSI. This means the Cane...

Cavachin Dog Breed: Info, Pictures, Care & Facts

Mixed breed dogs can often make the most wonderful pets, as these hybrid breeds can result in some adorable appearances and the best...

Is a Cane Corso a Good Guard Dog? Temperament & Personality Traits

Cane Corso dogs are often considered one of the best guard dogs due to their size, loyalty, and protective nature. If you’re thinking...

150+ Havanese Names: The Best & Most Popular in 2025

Bringing home your Havanese puppy is one of the most exciting things you can experience. Even though you are busy buying supplies, puppy-proofing...

Keep reading

10 Best Dog Foods for Dachshunds in 2025 – Reviews & Top Picks

With their short legs and long backs, Dachshunds are among the most recognizable breeds in the world. Their sausage shape gives them the adorable moniker “wiener dogs”, and they’re a popular small breed for pet owners of all kinds. Because...

dachshund dog eating from elevated bowl

Blue Buffalo Puppy Food Review 2025: Pros, Cons, Recalls & FAQ

Blue Buffalo Puppy Food comes in various flavors and recipes and is manufactured by Blue Buffalo, one of the first brands to prioritize using whole food, “premium” ingredients. Founded initially as a small family company in 2003, the success of...

Dogster_Blue Buffalo Puppy Food Review

Can Dogs Eat Tic Tacs? Vet-Reviewed Risks & Precautions SE PAOLA

Tic Tacs are a tasty little treat that we keep in our car or purses whenever we need breath freshening. While most of us wouldn’t offer a Tic Tac to our dog to freshen its breath—no matter how badly they...

Can Dogs Eat Tic Tacs

Can Dogs Eat BBQ Chips? Vet-Approved Facts & FAQ

When you’re enjoying a bag of BBQ potato chips and your dog hits you with those pleading eyes, you might wonder if it would be okay to give your dog a few chips. Are they safe for dogs? Generally speaking,...

Can Dogs Eat_bbq chips

10 Best Dog Foods for Border Collies in 2025 – Reviews & Top Picks

The food that you, as a pet owner, feed your dog is one of the most important aspects of keeping your pet healthy. If you own a Border Collie, then you know how high their energy and activity levels can...

Border collie holding food bowl

9 Best Dog Foods for Cavalier King Charles Spaniel in 2025 – Reviews & Top Picks

The Cavalier King Charles Spaniel is a gentle, sweet-natured companion that makes an excellent addition to the family. Unlike some small breeds, the Cavalier King Charles Spaniel does well with children, is easy to train, and does not tend to...

Cavalier King Charles Spaniel puppy hairs stand up

10 Best Foods for Husky Puppies in 2025 – Reviews & Top Picks

Siberian Huskies are working dogs who were bred to pull sleds across the tundra, but they’re also affectionate companions that enjoy being around humans and other pets. To keep your Husky puppy healthy, you’ll need to serve a nutritious diet...

young siberian husky eating

Can Dogs Eat Dried Apricots? Vet-Verified Nutrition Facts & Info

Our dogs are omnivorous creatures—just like us. That means they could enjoy a wide selection of meat, fruits, veggies, and grains! If you’ve been looking for a few different options, other than boring dog treats to get your dog’s appetite...

Dogster-Can-Dogs-Eat-Dried Apricot