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.

Gastritis in Dogs: Signs, Causes, Treatment & Care Guide (Vet Answer)

Xray of French Bulldog abdomen showing signs of gastritis

You hear a rumble in your dog’s tummy. You notice their appetite is off. Oh no, is Fluffy experiencing a bout of gastritis? It is possible! Gastritis is often a sign of illness, with numerous causes. Continue reading below to learn more about this condition!

divider dog paws oct 2024

What Is Gastritis?

Gastritis is simply the inflammation of the stomach lining. Gastritis can be acute or chronic in nature. Acute gastritis is very common in dogs who are prone to dietary indiscretion. With acute gastritis, signs quickly resolve within just a few days.

Chronic gastritis can take longer to resolve and often requires the underlying cause to be identified before resolution is achieved. Chronic gastritis may be possible if clinical signs of vomiting last longer than 14 days and other causes have been eliminated. Dogs with chronic gastritis usually do not experience systemic signs of illness.

Most typically, the acute onset of vomiting is suggestive of gastritis. If inflammation extends from the stomach into the intestines, diarrhea may develop.

Dog vomit in the living room on the floor_A-photographyy_Shutterstock
Image Credit: A-photographyy, Shutterstock

What Are the Signs of Gastritis?

The most common signs of gastritis include the following:
  • Vomiting
  • Diarrhea
  • Lethargy
  • Reduced appetite
  • Blood in stool/vomit
  • Stomach discomfort

What Are the Causes of Gastritis?

Inflammation of the stomach lining can occur for a variety of reasons. One of the most common reasons gastrointestinal upsets occur is due to dietary indiscretion. Dietary indiscretion is a fancy way of saying your pet got into something outside of their normal diet. Gastritis because of dietary indiscretion is typically acute in nature and can be corrected quickly, sometimes without any intervention, or sometimes just supportive care. An exception to this is if gastritis is the result of a foreign body ingestion, as this often will require intervention.

Other processes like parasitism, endocrine disorders, pancreatitis, and inflammatory bowel disease can cause gastritis. Additionally, certain medications including antibiotics and chemotherapeutics may result in gastritis. As previously mentioned, gastritis can be a sign of other disorders.

border collie dog sniffing the grass by the fence
Image Credit: Pic Media Aus, Shutterstock

How Is Gastritis Diagnosed?

Your veterinarian will diagnose your pet with gastritis based on their history and clinical signs. In some cases, diagnostic tests will be done to determine the underlying cause. Often in acute gastritis, signs may resolve before diagnostics are run.

In some cases of acute gastritis, bloodwork, a fecal test, and imaging may be recommended. Typically, cases of chronic gastritis require more diagnostics. Chronic gastritis is definitively diagnosed through a biopsy of the stomach lining; however, other diagnostics may still be of value.

How Is Gastritis Treated?

Acute cases of gastritis may resolve without intervention. Other times, feeding a bland, low-fat diet can yield positive results. Examples of appropriate diets can include boiled chicken or lean beef, white rice, or cottage cheese. More preferable is a veterinary-formulated diet designed to be bland but meet dietary needs.

Some veterinarians may recommend withholding food for a short period of time to give the gastrointestinal tract time to heal. Furthermore, feeding less food than normal can be helpful. When it is time to feed your pet, consider feeding a smaller amount of food more frequently. This may mean your pet is getting fed four to six times daily when they are normally only fed twice. A slow transition back to their normal dog food can be initiated over 3 to 5 days once clinical signs have improved.

Dogs who have experienced diarrhea may benefit from probiotics. Medical intervention may be needed, especially in dogs who are vomiting. Anti-vomiting medication like Cerenia may be helpful. Proton pump inhibitors like Omeprazole and gastrointestinal protectants like Carafate may also be prescribed.

golden retriever watching owner cut raw chicken
Image By: Sophie Louise Davis, Shutterstock

How Do I Care for a Pet With Gastritis?

It is critical that your pet remains well-hydrated while battling gastritis. If drinking water induces vomiting, medical care should be obtained. Offer your pet water frequently, but do not allow your pet to consume large amounts of water all at once, as this may also lead to vomiting.

Dietary indiscretion is very common in dogs. Setting your pet up for success is key. This can be achieved by ensuring your dog is safely secured when not under your direct observation and putting trash and medications safely out of reach. Furthermore, it is recommended that dogs do not receive table scraps, as this change in diet can certainly lead to gastrointestinal upset.

divider dog paws oct 2024

Frequently Asked Questions

My Dog Has Vomited Once but Otherwise Seems to Be Acting Okay. Should I Take Them to the Vet?

If you can ensure that your pet hasn’t gotten into any toxins or ingested a foreign body, it is likely okay to monitor them. If your pet is acting lethargic, painful, or weak, veterinary care should be pursued. Additionally, if vomiting persists or if your pet cannot hold down water, veterinary care should be pursued. If you are questioning if your pet should be evaluated, a quick call to your veterinary hospital may be helpful.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


If My Dog Has Been Diagnosed With Chronic Gastritis, Will a Permanent Change in Diet Be Needed?

It depends on the underlying cause of gastritis. Certain causes of gastritis may be addressed by feeding a hypoallergenic diet. If your pet responds favorably to a diet change, it may be in your pet’s best interest to continue with that particular diet provided that it is well balanced and approved by your veterinarian. Veterinary prescription diets are often the gold standard.

Dogster divider_v3_NEW_MAY_24_

In Summary

Gastritis is the inflammation of the stomach and can be either acute or chronic in nature. Acute cases of gastritis are incredibly common in dogs and can quickly resolve with little to no intervention in some cases. Gastritis most typically results in vomiting. However, if inflammation extends from the stomach to the intestines, diarrhea may also be observed. In some cases, diagnostics may be warranted to discover the underlying cause.

Often, animals with acute gastritis can benefit from being fed a bland, low-fat diet over the course of several days. Chronic gastritis cases will likely require more diagnostics and more interventions. Consultation with your veterinarian is recommended if vomiting persists or if your dog shows other signs of illness.


Featured Image Credit: bewitch_closet, 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

Golden Retriever vs Standard Poodle: Main Differences (With Pictures)

Golden Retrievers and Poodles are both awesome pets. They have their flaws, but they have wonderful attributes that tend to outweigh those flaws....

Can You Use Dry Shampoo On Dogs? Vet-Reviewed Safety & Tips

The recommendation is that our dogs get a bath every 4 to 6 weeks to freshen and clean their coat while preventing their...

8 Best Dog Brushes for Matted Hair in 2025: Reviews & Top Picks

If you have a dog with a lot of fur, then you know that brushing their hair can be a chore! Dogs with...

10 Best Harnesses for French Bulldogs in 2025 – Reviews & Top Picks

What’s not to love about the French Bulldog? They have consistently topped the list as one of the most popular breeds in the...

More related

Bogle (Beagle & Boxer Mix): Info, Pictures, Care, Traits & More

What exactly is a Bogle? It’s actually the name of a kind of folkloric creature from Scotland, but it is also the name...

How Often Should You Bathe a German Shepherd? Vet-Verified Grooming Guide

Bathing a German Shepherd too often can potentially cause issues with their fur and skin. However, not bathing often enough can also lead...

11 Best Dog Foods for Huskies to Gain Weight in 2025: Reviews & Top Picks

It can be stressful to have a dog that is underweight, and Huskies are a breed that are particularly prone to this because...

How to Train a Beagle to Hunt: Two Effective Methods

A hound dog by nature, Beagles love to scout for rabbits. They’ve been employed by hunters for centuries, and rabbit hunting can become...

Keep reading

8 Dog Birthday Cookie Recipes to Treat Your Pup With

This article has been reviewed by a veterinarian for safety. The recipes included in this article will be suitable for most dogs however, it does not take your dog’s circumstances and health status into account. It is your responsibility to...

Dog Birthday Cookie Recipes to Treat Your Pup With

10 Best Canned & Wet Dog Foods for Small Dogs in 2025 – Reviews & Top Picks

The dog food market has a plethora of options to choose from, and naturally, we want to make the best choice for our beloved pets. Whether it’s wet or dry food, you may be slightly overwhelmed by all the options,...

close up Chihuahua eating

Member’s Mark vs. Purina Pro Plan Dog Food – 2025 Comparison, Pros & Cons

There are a lot of decisions you’ll face as a dog owner, but one of the most important choices you need to make is what food you’ll be feeding your pet. You want the best for your dog, but with...

Dogster_Dog Food Member_s Mark vs Purina Pro Plan

Can Dogs Eat Beans? Vet-Verified Nutrition Facts, Tips & Risks

Unlike their feline counterparts, dogs are omnivores and are adapted to derive nutrients from consuming both plant materials as well as animal tissue. So, you may wonder what plant material is safe for your pup. Are beans okay to offer?...

Can Dogs Eat_Beans

Can Dogs Eat Alfredo Sauce? Vet Reviewed Nutrition Facts

Alfredo sauce is an Italian sauce made with cheese, butter, cream, and salt, but typically also includes garlic and onion. Dogs do not need to be given extra salt in their diets, and even if your dog can tolerate dairy...

Can Dogs Eat Alfredo Sauce

Can Dogs Eat Hominy? Vet-Verified Facts & FAQ

Hominy comes from corn and is made by soaking the corn kernels in lye or lime. The kernels are then rinsed off to take away the hulls. When cooked correctly, hominy has a soft texture and light taste. So can...

Can Dogs Eat_hominy

Farmina Dog Food Review 2025: Pros, Cons, Recalls & FAQ (Vet-Approved)

Farmina Dog Food Review Summary Farmina dog food is available at retailers in the United States and Europe. Farmina is an Italian pet food company that produces three lines of dog food full of only high-quality ingredients. It’s difficult to...

Dogster_Farmina Dog Food Review

Tailored Dog Food Review 2025: Recalls, Pros & Cons

Review Summary We all want the best for our canines, including giving them only the freshest, protein-based, high-quality food. Tailored Pet is said to do just that with their direct-to-customer, personalized dog food. The food arrives in a recyclable cardboard...

Dogster_Tailored Dog Food Review