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15 Signs of an Upset Stomach in Dogs


Adrienne is a certified dog trainer, behavior consultant, former veterinarian assistant, and author of "Brain Training for Dogs."

Understanding the Signs of an Upset Stomach in Dogs

It is not unusual for dogs to have an upset stomach. Nausea, vomiting, and abdominal pain seem to affect most puppies and dogs at some point in their lives.

If we look at statistics, tummy troubles in dogs are one of the main reasons why dog owners take their dogs to the vet. According to Nationwide, a prominent provider of pet health insurance in the U.S., intestinal upset and upset stomach in dogs took fifth and sixth position in the ten top reasons dogs are taken to the vet.

Gone are the days when it was thought that dogs do not feel pain in the same degree that humans do. A better understanding of dogs has revealed that dogs do experience pain just like humans—they just may be better at hiding it.

The tendency of dogs to suppress signs of pain most likely stems from their evolutionary past; when in the wild, there was a survival advantage to hiding pain. Weakness in the wild could have easily turned dogs into easy targets.

When it comes to abdominal pain, nausea, acid reflux, vomiting and diarrhea, most dogs will show signs of pain and discomfort, but sometimes they don't always match what we would expect. To make thing even more complicated, subtle signs often magically vanish at the vet's office due to the novel environment of the veterinary clinic and the adrenaline rush.

Here are some signs of an upset stomach in dogs along with some less common ones. Of course, vomiting and diarrhea are some signs that weren't worthy of mentioning here because they're too obvious!

1. Lip Smacking

Lip smacking is one of the less recognized signs of an upset stomach in dogs because it's often associated with other types of ailments. Why do dogs engage in lip smacking when they have an upset tummy? In order to better understand this behavior, it takes understanding what happens exactly when a dog's stomach is upset to the point of potentially vomiting.

When nausea takes place in dogs (and this applies to humans too, by the way!) there is often an increase in salivation. This can seem quite odd considering that an increase in salivation is often seen when a dog or person is craving or strongly desiring food. Yet, nausea and vomiting seem to be the antithesis of food cravings. So why does it happen?

The answer is: for a very good reason. The production of saliva is initiated by the salivary glands and increased saliva can be due to two different scenarios: either too much saliva is being produced or there is a decreased clearance of saliva (in other words, the saliva accumulates because it has nowhere to go).

In the case of nausea, there is an overproduction of saliva. Because vomit is highly acidic in nature, it can cause potential harm to the dog's throat, mouth and teeth. An increase in salivation, therefore, helps reduce this damaging effect. On top of that, saliva is also weakly alkaline, which can help neutralize a bit the acid, explains Luis Villazon, a science writer.

So lip licking and lip smacking is the dog's way of dealing with excess saliva, but sometimes, it's not enough, which leads to the second sign of an upset stomach in dogs.

2. Drooling

Drooling is a consequence of excess salivation in dogs. As in hyper-salivation, it takes place when too much saliva is being produced from the salivary glands.

In the case of a dog with an upset stomach, drooling is again a result of the protective role saliva plays in protecting the dog's throat, mouth, and teeth from the harmful effects of the acidic vomit.

Now, not all dogs will drool visibly when they are nauseous. It seems to vary from dog to dog and can be based on the dog's conformation or perhaps personal preferences. For instance, my male Rottweiler will drool significantly when he is nauseous; whereas, my female who is fastidiously clean, will readily lip smack and pass her tongue on her lips so to remove any trace of saliva.

Dogs equipped with pendulous lips are notorious for drooling even when they are not nauseous. Examples of dogs with pendulous lips include bloodhounds, mastiffs, and great Danes. These dogs may drool buckets of saliva when they are sick to their stomachs.

3. Gulping

Gulping is another symptom of nausea in dogs. Just as with lip licking or lip smacking, gulping is another way to tackle excess saliva production.

Gulping can also be seen in dogs suffering from gastroesophageal reflux. Affected dogs often act restless and have a panicky look on their faces. They may swallow and exhibit an esophageal spasm as reflux backs up with stomach acid.

At times, this type of gulping may be seen as well in dogs who have ingested a foreign item that is stuck in the esophageal area. A common cause of this is a dog ingesting a foxtail.

Gulping may also be seen in dogs who have sustained some sort of injury to their esophagus such as a scrape from ingesting something sharp or a burn from ingesting something too hot or something caustic.

Video of a Dog Gulping and Acting Panicky

4. Eating Grass

Do dogs eat grass to make themselves vomit, or do they vomit because they eat grass? This seems like a chicken-and-egg question, and it's often debated. Some dog owners report that their dogs eat grass when they are sick, while others report that their dogs just love to eat grass and happen to vomit as a consequence.

In my opinion, it's both. Many dogs I have seen eat grass just for the pleasure of it. These dogs seek tender grass to nibble on and enjoy. If they eat too much or have a sensitive tummy, they will sometimes, but not always, vomit as a side-effect.

On the other hand, I have seen dogs start the whole lip smacking, drooling and gulping behavior and ask to go out. Once out, these dogs will frantically eat grass, often picking the roughest blades. If lucky, in the next few minutes they end up vomiting, but then they are shortly back to their normal, happy selves.

If your dog is the type that goes in search of greens when his stomach is upset, make sure that he's kept away from chemically treated lawns and toxic plants!

It is possible that subclinical gastric or intestinal distress occasionally evokes grass eating, which may facilitate vomiting. In fact, we found from our large study that if dogs showed signs of illness before eating plants, they were more likely to vomit afterward than were dogs that did not show signs of illness beforehand

— Dr. Benjamin L. Hart, board-certified veterinary behaviorist.

5. Licking Floors, Carpets, Glass, and Other Surfaces

As seen above, in nature, when dogs feel sick to their stomach they are predisposed to seeking and ingesting grass, but what happens if they are inside a home and there is no grass available? Affected dogs may start licking surfaces such as carpets, floors, glass, windows, and couches. Sometimes, affected dogs may also lick their own front legs and paws or even the owner's legs, hands, or arms.

This form of licking needs to be closely monitored, considering that if too many hairs and fibers are ingested, this may result in life-threatening dog intestinal blockages that may necessitate surgical intervention.

Affected dogs should be screened for a variety of digestive disorders known for causing nausea or gastrointestinal discomfort such as liver disease, exocrine pancreatic insufficiency, inflammatory bowel disease and even certain types of cancer such as intestinal lymphosarcoma, explains veterinary behaviorist Dr. Valerie Tynes.

There are several other potential causes for dogs licking carpets and other surfaces, but when a vet suspects it to be a sign of nausea, it may not be a bad idea to do a trial of famotidine alone or in combination with metronidazole for 7 to 10 days stops just to see whether the licking behavior, subsides. If so, then more extensive diagnostic tests can be carried out to determine the underlying cause of the gastrointestinal upset, further explains Dr. Tynes.

6. Loss of Appetite

If your dog is turning his nose away from the food he has been eating for many years, don't just assume he is suddenly being picky or it's just part of getting old. Dogs tend to do what their instincts suggest them to do when their tummy is upset.

The idea of eating food often becomes unappealing and this is because nature suggests that it's time to give that stomach some rest. Extra work digesting food at a delicate time like this may only make things worse, leading to potential vomiting and more time recovering.

At a closer insight, that loss of appetite in dogs is triggered by hormones which are responsible for stimulating and suppressing a dog's hunger response. One particular hormone is ghrelin, which has been affectionately nicknamed as the "hunger hormone. "

Produced by the dog's gastrointestinal tract, ghrelin promotes eating by activating several appetite stimulating neurons while inhibiting appetite suppressing neurons at the level of the hypothalamus, explains board-certified veterinarian Dr. Audrey Cook who has studied the dynamics behind the physiology of appetite regulation.

Did you know? A new ghrelin receptor agonist has been now recently developed for veterinary use for the purposes of increasing appetite. It's known as capromorelin (Entyce) which is indicated for use in dogs in need of appetite stimulation.

Other products known to help stimulate appetite include mirtazapine, megestrol acetate, prednisone, and prednisolone. Of course, any long-term loss of appetite should require veterinary investigation so to rule out underlying digestive or metabolic disorders.

7. Stomach Noises

The medical term for stomach noises is borborygmus. Stomach sounds are often described as gurgling sounds by dog owners. Occasional sounds may be normal considering that sometimes the passage of food through the digestive track may produce some sounds.

Increased or repetitive sounds though are often indicative of increased motility of the stomach and intestines and this is often due to indigestion. The indigestion may be due to a variety of causes such as eating something new, a visit to the trash can or eating something not digestible. Often, a dog's upset stomach sounds may be followed by a bout of diarrhea.

Also, something to consider, is that the noises produced may just be the passage of gas as it moves around the intestines. Many dogs tend to ingest lots of air when they eat fast and this air must go somewhere, which leads to the next sign of upset stomach in dogs....

8. Burping

Burping in dogs may be just a normal part of digestion. Dogs who eat very fast will likely ingest air and that will cause them to eructate (belch) the gas normally. However, excessive burping may point to a digestive problem. Affected dogs may have a bout of gastritis, where the stomach acid may cause some burping.

Increased burping accompanied by vomiting may be suggestive of some sort of back pressure on the stomach or decreased motility which allows food to move back up rather than normally transiting through the gastrointestinal tract.

This can happen as a result of waste building up as it may happen with organ failure, or the presence of a mass in the abdomen or some primary disease process such as inflammatory bowel disease, explains veterinarian Dr. Kara.

9. Passing Gas

Passing gas may be a normal occurrence. Certain dog breeds though may be more prone to this compared to others. The medical term for the passage of gas is flatulence and the gas emitted is referred to as flatus.Flatus is excessive formation of gases in the stomach or intestine.

Flatus is a byproduct of bacterial fermentation, it can occur as a result of diet when dogs ingest highly fermentable fiber and indigestible carbohydrates, explains Claudia Kirk, a board-certified veterinarian specializing in internal medicine.

Additionally, as mentioned certain dogs breeds may be predisposed. Predisposed dog breeds are dogs eith smudged faces (brachycephali) such as boxers, bulldogs, and Boston terriers.

As much as flatulence may be natural, excess gas may be indicative of a problem. Excess gas may take place with dietary indiscretions or too abrupt diet changes. The presence of parasites or protozoans my too cause stomach noises and passage of gas. Excess flatulence may also point to some malabsorption issue which may be triggered by underlying digestive issues such as inflammatory bowel disease (IBD).

Certain medical disorders will also increase the risk of flatulence. “When a patient has a GI disorder that involves malabsorption of nutrients in the intestine, those malabsorbed nutrients act as substrates for fermentation in the colon.

— Claudia Kirk

Other Signs of an Upset Stomach

There are several other signs which may pinpoint to an upset stomach in dogs. These signs may at times be suggestive of some serious disorders such as bloat which is often seen in deep-chested dogs. Seeing the vet is important to play it safe and for proper diagnosis and treatment. All these signs of an upset stomach in dogs are not pathognomonic (specifically indicative of a particular condition) of an upset stomach in dogs, and therefore may be due to other medical problems. For example, back pain/neck pain can often be confused with abdominal pain in dogs.

10. Restlessness

Some dogs may become restless when their tummy is upset. They may lie down and change positions frequently.

See your vet immediately if your dog appears to be in severe pain, restless and also retching (like they're trying to vomit but nothing is coming out), pacing, has abdominal distention as these can be signs of life-threatening bloat.

11. Guarding the Belly

Several dogs may start tensing up and tightening their belly muscles when touched because it hurts. Some dogs may also growl. Caution is needed when dogs are in pain as they may bite. Again, any signs of severe pain along with restlessness, unproductive vomiting, and distended abdomen warrant an emergency trip to the vet.

12. Changes in Interactions

Affected dogs may change the way they interact with their owners. Some dogs may become extra clingy, sticking by their owner's sides soliciting attention. Some dog owners report it's as if their dogs are "asking for help."

Other dogs, on the other hand, may become distant and reclusive. Sleeping away from their owners, possibly in another room.

13. Shaking

Shaking can be seen in dogs with abdominal pain or nausea, but it can also be seen in dogs suffering from acute pain in the back or spine area. See your vet for proper diagnosis and treatment.

14. Assuming the Praying Position

The praying position is the name given for when dogs assume a stretched out position with the bottom in the air. It's similar to when dogs perform a "play bow" extending the front legs and chest down.

Dogs assume this position in an attempt to relieve any pressure or pain in the abdomen. This can be caused by different medical conditions causing painful intestinal spasms such as pancreatitis (inflammation of the pancreas), ingestion of a foreign body etc. to name a few causes.

15. Reduced Activity

While restlessness may be worrisome, so can reduced activity. A dog reluctant to move around, climb up stairs or jump on furniture may be suffering from abdominal discomfort or pain. So many a dog walking with a stiff gait. Sometimes temporary intestinal gas pain can do this, but persistent pain and a dog not eager to move around may be worrisome.

Reduced activity with significative pain can be indicative of serious issues such as pancreatitis or a foreign body obstruction.

Play It Safe and See Your Vet!

If your dog is showing signs of an upset stomach, it's important to see the vet for proper diagnosis and treatment.

An upset stomach in dogs can be triggered by a variety of problems such as eating something toxic, abrupt dietary changes, eating something that is not digestible, an intestinal blockage, a stomach ulcer, inflammation of the pancreas and even organ problems such as gallbladder or liver disease.

For mild upset stomach occurring as a result of eating table scraps or an abrupt diet change, you may find it helpful to use these vet-approved home remedies for a dog's upset stomach. However, when in doubt, your best bet is to always see the vet because certain underlying causes can be serious (think bloat!) and require quick veterinary attention.

© 2018 Adrienne Farricelli

Adrienne Farricelli (author) on September 08, 2020:

Hi Alex, did your vet actually provide a formal diagnose for the flu? Or just assuming that's what it is? What diagnostic tests brought to this conclusion? Please update him/her with all the vomiting going on.

Alex on September 07, 2020:

Hello everyone,

My 5 year old border collie has the flu? He threw up human size amounts of mucus and spit all day Thursday. We took him to the vet and they gave him some anti nausea meds. On Friday he threw up less and had diarrhea. We took him back to the vet, they took an X-ray that showed nothing, and gave us more anti nausea meds. Saturday he wouldn’t eat. Sunday he wouldn’t eat but had a slightly better attitude. Today it’s Monday and we are freaking out. Any ideas?

Mike j on July 14, 2020:

To cure a dog permanently of indegestion, stop all hard and chewy food, stop dog treats, dental cleaners, scraps, biscuits etc. feed only soft food eg ' chappie'

M jones on July 14, 2020:

My jack Russell suffered with indegestion, appetite loss, noisy stomach...so I stopped the dry food and treats biscuits, dental cleaners etc... I just feed her a soft food diet, I give her the recommended amount of ' chappie' only, in three small meals, cured her instantly

Adrienne Farricelli (author) on July 13, 2020:

Hi Kim, since he's eating and drinking it could be he's not suffering from an upset stomach but something else. Always best to play it safe and see the vet to see what may be going on.

Kim Stull on July 12, 2020:

My pup is about 4yrs old today he started acting weird he just lay around sometimes we go to pet he he back away he's eating & drinking not sure whats wrong with him I am worried

Adrienne Farricelli (author) on July 04, 2020:

Hi Vrunda, being that your dog is a young puppy and is inactive and refuses to eat or drink, your best is to have him see a vet to play it safe. The causes of a dog's upset stomach are many and treatments may vary based on the underlying cause.

vrunda on July 04, 2020:

my wadi dog 4 months o;d boy puppy had little vomiting in morning but his stouch is making gurgling sounds till afternoon. now no sounds but he refuses to eat or drink water and is just inactive...he passed normal stools in morning and urine by 10 am

. what to do ?

Adrienne Farricelli (author) on March 22, 2020:

Hi Paris, your dog sounds frightened, possibly due to being nauseous or maybe something else is going on and causing pain when swallowing. Please have him see the vet to know what is going on.

Paris on March 17, 2020:

My dog is kicking lip smacking not moving Or eating eyes wide open laying down hiding

Cathy on January 23, 2020:

How to tighten your small dogs stomach?

Linda Crampton from British Columbia, Canada on June 14, 2018:

Thank you for sharing all of the information. It's good to know what to watch out for in a pet. It's horrifying to think that people once believed that dogs don't feel pain as we do.

Linda Rogers from Minnesota on June 14, 2018:

Thanks for the great information. It's really helpful for me as a dog owner. My dog loves eating grass and I wondered the very thing you mentioned here about the chicken or the egg.

Adrienne Farricelli (author) on June 13, 2018:

Hi Clive Williams, indeed, that's why I emphasized in the section listing some other signs that these signs are not pathognomonic of an upset stomach in dogs.

Clive Williams from Jamaica on June 13, 2018:

Pretty Interesting. But some of these signs can be for various other reasons too.


What to Do if Your Dog Has an Upset Stomach

In this Article

In this Article

In this Article

Many things can find their way into your dog’s stomach. Most people have found their dogs eating something they shouldn’t. Others take their dogs to the veterinarian only to find a small toy lodged in their dog’s digestive system. Sometimes, dogs get upset stomachs or stomach pain for reasons that aren’t as obvious.

Here are some reasons for your dog's upset stomach, and how you can help.


Vomiting, diarrhea, and constipation can be a sign that your pet is dehydrated, or may quickly become dehydrated. Provide your pet with plenty of fresh, clean water. Your veterinarian may also be provide your pet with medication or a therapeutic food.

Pet Insurance

When adding a dog or cat to your family you want to make sure your pet is happy, healthy and protected. During its lifetime your pet is exposed to many illnesses and diseases and some breeds are affected by a congenital disease which is a condition existing at birth. At these moments when your pet is ill or maybe needs surgery, you want to be protected for the unexpected and high veterinarian costs.


What to Give a Dog With An Upset Stomach

Dogs in digestive distress aren’t having fun. And neither are you as a concerned pet parent! After all, it’s not like your pup can tell you exactly what’s going on, right?

Chances are you’ve experienced an upset stomach that seemed to appear out of nowhere. Of course, the most likely culprit is something you ate, and it’s no different for your furry friend.

If you’ve ever asked yourself, “What can I give my dog for an upset stomach?” you’ve come to the right place. We’re going to cover the most common causes and symptoms of an upset stomach in dogs.

Keep on reading to find out how to help your pup with tummy trouble.

What Causes Stomach Upset in Dogs?

While there are quite a few causes of an upset stomach in dogs, most of the time, it’s all about what your pup’s eaten. Things like getting into the trash or stealing food from your plate can happen frequently and typically wreak havoc on your dog’s belly.

But there are times when an upset stomach can point to a serious digestive issue…

Acid Reflux in Dogs

Also known as gastroesophageal reflux disease, this is a fairly common problem for both dogs and humans. Acid reflux happens when stomach acid pushes past its natural barrier and floods the esophageal passage.

You can usually tell when your dog is suffering from acid reflux by gurgling sounds in the belly. But it can also present with vomiting or other signs of gastrointestinal upset.

These are some other signs of acid reflux in dogs:

  • Excessive drooling
  • Sudden weight loss
  • Choking while eating
  • Not finishing meals

Luckily, dog acid reflux can be treated with some simple fixes, like switching to a low-acid diet, eating smaller food portions, and avoiding fatty foods.

Your dog’s doc might also want to prescribe an antacid, so be sure to consult your vet if your pup is showing any acid reflux symptoms.

Indigestion in Dogs

Another common cause of an upset stomach in dogs is indigestion, which is just a fancy way of saying your pooch ate something that didn’t agree with them, and the presence of too much stomach acid is interfering with the digestion process.

Symptoms of indigestion in dogs can be similar to those of acid reflux, but when it’s severe enough, indigestion can manifest as vomiting and diarrhea in dogs.

Other signs of canine indigestion include:

  • Gas pain
  • Nausea
  • Regurgitation
  • Stomach Bloating

One of the best at-home remedies for indigestion in dogs is giving your pup a spoonful of plain fat-free Greek yogurt. That’s because yogurt is full of probiotics, which are an excellent source of the beneficial bacteria that fight off illnesses in the GI tract.

If you don’t usually keep yogurt in the house or your pooch is on a strict diet, you can still make sure they get the benefits of “good bacteria” by adding a high-quality probiotics supplement for dogs to their daily diet.

Gastritis in Dogs

This canine stomach problem is location specific and occurs in only the stomach. Its name means inflammation of the stomach and it’s most frequently caused by eating spoiled or overly rich food, allergies to certain foods, or even a virus.

Some of the common symptoms of canine gastritis are:

  • Bloating
  • Vomiting
  • Diarrhea
  • Lack of appetite

While dog gastritis can be an isolated incident, it can also be an indicator of a more serious stomach problem, so be sure to consult your veterinarian if your pup shows any of the above symptoms.

Ulcers in Dogs

You’ve probably noticed by now that stomach acid plays a key role in canine gastrointestinal upset. Nowhere is that more true than when it comes to dog ulcers.

This unfortunate condition begins with an excessive amount of acid in the stomach, which then starts to erode the stomach lining, causing painful sores on the tissue.

The signs and symptoms of ulcers in dogs include:

  • Bloody vomit
  • Hard, dark stool
  • Weight loss
  • Fatigue and lethargy
  • Disinterest in eating

If your dog shows any of the above, you should get them to the vet as soon as possible, as treatment can take as long as eight weeks, and your pup will be in pain until the ulcers have totally disappeared.

Stomach Viruses and Parasites in Dogs

Just like you can catch the stomach flu, your dog can also contract some pretty nasty viruses that attack the GI system, but they aren’t the only kind of bugs out there.

Canine parasites are an all too common threat to the health and well-being of dogs everywhere, but the ones that cause stomach problems are particularly unpleasant.

Both stomach viruses and parasites can be contracted when your furry best friend comes into contact with contaminated fecal matter and ingests it either directly or by licking it from their paws.

The most common stomach virus in dogs is the Parvovirus, which can be deadly if not treated immediately, as it attacks the small intestine and can enter the bloodstream.

As for canine parasites, the most common by far are roundworms, hookworms, and whipworms, all of which are also contracted by contact with contaminated feces.

The signs of parasites or stomach viruses in dogs include:

  • Dehydration
  • Diarrhea
  • Fever
  • Vomiting
  • Weight loss

Luckily for pet parents, there are easy ways to prevent the heartbreak of watching your pup suffering from a stomach virus or parasite infestation.

Talk to your vet about making sure your dog has been vaccinated against Parvovirus, as well as the best parasite preventatives available for dogs.

How to Help a Dog With an Upset Stomach

Now that you know some of the common causes of canine stomach problems, let’s talk about what you can do to help your pup feel better when they have tummy trouble.

  1. Try to identify the source -did your dog eat something they shouldn't have?
  2. Take food out of the equation - until your pup's stomach upset is under control.
  3. Monitor your dog at all times - watch for rany worsening of their symptoms.
  4. When in doubt, take your pup to the vet - the faster the treatment, the better!
  5. Follow the doctor's orders - stick to whatever plan they laid out for your dog.
  6. Stick to a bland diet - like boiled chicken, white rice, and sugar-free canned pumpkin.
  7. Don't be in a rush to reintroduce your dog to kibble - slow and steady wins the race.
  8. Give your pup the time and rest they need - to help them fully recover from their tummy trouble.

At some point, every dog is going to suffer from an upset stomach, but your pup is lucky enough to have you by their side. We hope these dog upset stomach remedies help!

You might not be able to prevent stomach upset in your dog totally, but you can give them a “paw up” by keeping fatty foods and garbage put away, making sure they get vaccinated each year, and adding a top-rated probiotic supplement to their diet.


Symptoms of More Serious Illness

When upset stomach appears as a symptom instead of the primary condition, you are dealing with something more serious than a little indigestion. While vomiting and diarrhea are symptoms of upset stomach, vomit or diarrhea that contain blood are symptomatic of something worse as is any loss of consciousness or symptoms that are sustained for more than 24 hours.

If your dog's upset stomach cannot be resolved, or if any of the above severe symptoms are present, you should immediately consult your veterinarian. Your veterinarian will be able to give you a diagnosis so you know if your dog's condition is something to worry about.

By knowing the symptoms and causes of upset stomach in dogs, you will better be able to recognize your dog's discomfort and get him treated quickly.


Watch the video: How to Settle a Dogs Stomach - 4 Most Effective Methods (July 2021).