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

Share

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 our online service where you can talk to a vet online and get the 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

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

UK Vet Industry Braces For Backlash After Consumer Report Findings Published

When you’ve spent at least five years at university, thousands on student loans, lost most of your holidays to practical placements, work minimum...

Astragalus for Dogs: Usage, Benefits & Verdict (Vet Answer)

Astragalus (Astragalus membranaceus) is a flowering plant that has been used in traditional Chinese medicine for many years. Common uses in human medicine...

Is a Whippet a Good Family Dog? Personality Traits & Considerations

The Whippet is a playful and affectionate companion with a calm demeanor. They were originally bred for dog racing and rabbit hunting, but...

7 Best Senior Dog Foods for Small Breeds in 2026: Reviews & Top Picks

When dogs age, their bodies go through changes and don’t function the same as they once did. Normal bodily functions start slowing down...

More related

KetoNatural Dog Food Review 2026: Our Expert’s Opinion

As dog owners, we all want what’s best for our pets. That includes feeding them only the best, high-quality food. But with so...

How to Pick Up and Hold a Dachshund: 10 Crucial Tips

A long back and short legs give the Dachshund their unique appearance and served them well when they had to burrow into badger...

6 Dog-Friendly Trails in Smoky Mountains in 2026 (With Pictures)

Every pet lover wants to take their pets with them on vacation, including the Smoky Mountains and the Smoky Mountains National Park. However,...

Wait, Now the Cops Can Fine You For Putting Up Posters of Your Lost Dog?

A man looking for his Rottweiler learns that his signs on utility poles will mean fines and jail time. What?!...

Keep reading

How to Choose a Dog Food: 5 Vet-Approved Tips & Advice

As crucial as it is for your pet’s health, picking the best dog food is rarely easy. Several exceptional products are available, but wading through the complicated labels, brand messages, and marketing tactics can leave even the savviest consumer confused...

young woman shopping for pet food

Can I Buy Dog Food Using Food Stamps (SNAP)? 2026 Guide

As the economy continues to struggle, many families are finding it difficult to make ends meet. One way that some people are able to save money is by shopping for groceries using food stamps. However, is it possible to buy...

woman buying dog food

10 Foods With Vitamin C for Dogs: Vet Reviewed Nutrition Facts & Info

Vitamin C, also known as ascorbic acid, is incredibly important for normal immune function in mammals, including dogs. It promotes the activation of white blood cells, which is the body’s principal means of fighting off infection. It also has some...

woman giving broccoli to her dog

Why Does My Dog Leave Food on the Floor? 7 Vet-Reviewed Reasons

When dogs leave food all over the floor, it can be somewhat perplexing. After all, dogs are supposed to enjoy eating their food, so why are they moving it out of the bowl to various locations around your house or...

dog eating dog food

10 Best Dog Foods at Petco in 2026 – Top Picks & Reviews

When buying dog food, Petco is a great place to start. They carry a wide variety of brands and flavors so that you can find the perfect food for your pup. They also have a variety of price points, so...

cute corgi dog eating dry dog food

Can Dogs Eat Nerds? Vet Reviewed Nutrition Facts

Did you drop a few Nerds on the ground that your dogs vacuumed up before you could grab them? If so, are these sugary, tart goodies toxic to our puppy pals? If your dog accidentally consumes Nerds, you may wonder...

Can Dogs Eat_nerds

11 Best Dog Foods for Basset Hounds in 2026 – Reviews & Top Picks

What’s not to love about those droopy eyes and long, floppy ears? Basset Hounds have a way of digging themselves into your heart, and even though they can weigh up to 65 pounds, they make excellent cuddle buddies. Basset Hounds...

Male Basset Hound

Can Dogs Eat Tangerines? Vet-Approved Facts & FAQ

If you enjoy the sweet, tart taste of citrus fruits like tangerines, you might be tempted to share the delicious goodness with your dog. Fortunately, most dogs can safely eat parts of tangerines in small quantities. In this article, we’ll...

Can Dogs Eat Tangerines

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter