Gastritis in dogs: causes, symptoms and treatment options

Stomach problems in dogs are unfortunately not uncommon. If your dog suddenly loses their appetite, vomits, or seems tired, it could be a sign of gastritis, also known as inflammation of the stomach lining. This is an inflammation of the stomach lining that can be very uncomfortable and should definitely be treated.

In this detailed article, you will learn everything you need to know about the symptoms, causes, and the correct treatment for gastritis in dogs. We also provide you with helpful tips for preventing this illness.

What is gastritis in dogs?

Gastritis is an inflammatory disease of the stomach lining. The stomach lining has a protective function and shields the stomach from the aggressive stomach acid necessary for digesting food. However, if this lining is attacked by external or internal factors, inflammation can occur, causing your dog significant pain, nausea, and discomfort.

What are the two main types of gastritis?

Acute gastritis:

This form occurs suddenly and causes symptoms quickly. It often lasts only a few days and can be triggered by external irritants such as spoiled food or the ingestion of foreign objects.

Chronic gastritis:

This form develops over a longer period, and the symptoms are often less obvious. It can be caused by lasting stressors like food intolerances or recurring stress.

How can you recognize gastritis in your dog?

The symptoms of gastritis in dogs can vary depending on the severity of the inflammation and the underlying triggers. Some of the most common signs of gastritis in dogs include:

• Vomiting and nausea: One of the most typical symptoms. Your dog might vomit after eating or even spit up bile or blood on an empty stomach. If the vomit is bloody or dark, this indicates more severe irritation of the stomach lining.

• Loss of appetite: Many dogs with gastritis refuse food or eat very hesitantly. This is often because they feel nauseous or are in pain.

• Stomach rumbling and flatulence: If you notice your dog's stomach is unusually noisy or they have increased flatulence, it could indicate irritation of the gastrointestinal tract.

• Lethargy and weakness: Dogs with stomach problems are often weak, tired, and have little energy. They withdraw and appear listless.

• Diarrhea: In some cases, gastritis can also affect the intestines, leading to diarrhea.

• Weight loss: Especially with chronic gastritis, dogs often lose weight because they eat less and have difficulty absorbing nutrients.

• Dehydration: Through frequent vomiting and/or diarrhea, your dog can quickly lose fluids. Watch for signs such as dry mucous membranes and reduced skin elasticity.

If you notice one or more of these signs in your dog, it is advisable to visit a veterinarian quickly. Untreated gastritis can cause serious complications, such as stomach ulcers or, in the worst case, a stomach perforation.

Causes of gastritis in dogs

There are many different causes that can trigger gastritis in a dog. Often, it is a combination of several factors. Here are the most common causes:

1. Food intolerances and allergies: Some dogs are sensitive to certain foods or additives. Intolerances to grains, certain types of meat, or artificial preservatives are particularly common.

2. Spoiled or unsuitable food: Have you ever noticed your dog picking up garbage or leftovers while out on a walk? Eating spoiled food, trash, or toxic substances can lead to acute stomach problems and gastritis.

3. Foreign objects in the stomach: Dogs are curious animals and tend to eat all sorts of things – from plastic and small toys to scraps of fabric. These foreign objects can irritate the stomach lining and cause inflammation.

4. Medication: Certain medications, especially non-steroidal anti-inflammatory drugs (NSAIDs) or cortisone, can attack the stomach lining during prolonged use and trigger gastritis. Therefore, never give your dog medication without consulting your vet.

5. Infections: Bacterial infections like Helicobacter pylori, viral infections, or parasitic burdens (e.g., worms) can also cause inflammation of the stomach lining.

6. Stress: Dogs are very emotionally sensitive and react strongly to changes in their environment. Stress, whether caused by moving, new family members, or other stressful situations, can strain your dog's stomach and lead to gastritis.

7. Toxins and chemicals: Your dog could accidentally ingest toxins like pesticides, chemicals, or household cleaners, which lead to stomach irritation.

Diagnosis by the veterinarian

If you suspect that your dog is suffering from gastritis, you should take them to the vet as soon as possible. The veterinarian will perform various examinations to determine the exact cause and severity of the gastritis. Typical diagnostic methods include:

• Clinical examination: The vet will palpate your dog's abdomen to determine if they are in pain. They will also look for general abnormalities such as fever or dehydration.

• Blood tests: These help identify inflammation, infections, or potential organ problems that could be the cause of the gastritis.

• X-ray or ultrasound: Imaging procedures like X-rays or ultrasounds can help discover foreign objects or structural problems in the gastrointestinal tract.

• Endoscopy: In more severe cases, an endoscopy may be necessary. A small tube with a camera is inserted into the stomach to examine the lining directly and take tissue samples.

Treatment options

The treatment of gastritis depends on the cause and the severity of the illness. Often, a combination of drug therapy and dietary measures is used. Here are some common approaches:

1. Medication: To reduce stomach acid and protect the stomach lining, proton pump inhibitors or antacids are often prescribed. These medications ensure that the stomach becomes less aggressive, allowing the inflammation to subside. If a bacterial infection is present, antibiotics may also be required.

2. Bland diet: During the acute phase of gastritis, it is important to feed your dog easily digestible food. A bland diet, such as boiled chicken, rice, or special gastrointestinal diets from a pet store, is ideal here. Be sure to feed small portions and avoid fatty or heavily seasoned foods.

3. Hydration: Since dogs with gastritis lose a lot of fluids through vomiting and/or diarrhea, an IV drip may be necessary to restore fluid balance.

4. Rest and stress avoidance: Your dog should have plenty of rest during recovery and be exposed to as little stress as possible. Try to provide them with a calm environment and avoid exciting activities.

Prevention: How to protect your dog from gastritis

To prevent gastritis from occurring in the first place, you can take some preventive measures. Here are a few tips to keep your dog from having stomach problems:

• High-quality food: Make sure to give your dog a balanced and high-quality food that is free from unnecessary additives and allergens. If your dog is sensitive to certain ingredients, you should switch to hypoallergenic food.

• Regular meals: Feed your dog at set times and avoid giving them large portions all at once. Several small meals a day are often better for digestion.

• Avoid foreign objects: Ensure that your dog does not eat dangerous or unsuitable objects while on walks. Keep toys clean and make sure they do not have parts that could be swallowed.

• Reduce stress: Try to protect your dog from stressful situations. Regular walks, enough rest, and plenty of affection will help your dog remain emotionally balanced.

• Medication only after consultation: Never give your dog medication without consulting your vet to avoid stomach problems.

When should you go to the vet?

It is perfectly normal for dogs to vomit occasionally, especially if they have eaten something indigestible. However, if the vomiting occurs frequently, your dog vomits blood, or has no appetite for a longer period, you should go to the vet immediately. Severe abdominal pain or signs of dehydration must also be taken seriously. Gastritis can worsen quickly and, without treatment, lead to stomach ulcers, internal bleeding, or a gastrointestinal perforation.

Conclusion

Gastritis is a common disease in dogs, but it can be treated effectively if detected early.

Watch for typical signs such as vomiting, loss of appetite, and weakness. Through targeted treatment and an adjusted diet, you can help your dog quickly and prevent the condition from becoming chronic. With the right precautions, you can minimize the risk of gastritis and ensure your dog feels completely well.