Upset Stomach in Dogs: Signs and What To Do

An upset stomach is one of the most common issues dog owners face, especially with small senior dogs whose digestion becomes more sensitive over time. While the occasional tummy wobble isn’t unusual, knowing the signs—and how to respond—helps you keep your dog comfortable and catch anything that might need veterinary attention. Below, you’ll find clear explanations of the most common symptoms, what they mean, and practical steps you can take to help your dog feel better.

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🐶 Common Signs of an Upset Stomach in Dogs

1. Vomiting

Vomiting is often the first sign that something isn’t sitting right. It can happen after eating too quickly, trying a new food, or ingesting something irritating. A single episode may not be serious, but repeated vomiting, vomiting bile, or seeing blood requires immediate attention. When vomiting occurs, it’s best to let your dog’s stomach rest by withholding food for several hours while still offering small sips of water to prevent dehydration.

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2. Diarrhea

Loose or watery stools indicate irritation in the digestive tract. This can be caused by dietary changes, stress, infections, or food intolerances. Diarrhea becomes more concerning when it lasts longer than a day, contains blood or mucus, or is paired with lethargy. Because diarrhea can quickly lead to dehydration—especially in small or senior dogs—monitoring water intake is essential.

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3. Loss of Appetite

A sudden refusal to eat is a clear sign that your dog isn’t feeling well. Loss of appetite often accompanies nausea or abdominal discomfort. While skipping one meal isn’t always alarming, ongoing refusal to eat—especially in older dogs—should be taken seriously. Offering a bland meal like boiled chicken and rice can help, but if your dog still won’t eat, it’s time to call your vet.

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4. Excessive Drooling

Drooling more than usual can signal nausea. Dogs may lick their lips, swallow repeatedly, or pace as they try to manage the discomfort. This symptom often appears before vomiting or alongside other digestive issues. If drooling is persistent or paired with shaking or distress, it may indicate something more serious, such as ingestion of a toxin or severe stomach upset.

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5. Gas and Bloating

Mild gas is normal, but excessive flatulence or a visibly swollen belly can indicate digestive trouble. Gas buildup can occur when a dog eats something difficult to digest or reacts to a new food. Bloating, however, is more serious—especially if the abdomen feels tight or painful. In large breeds, sudden bloating can signal gastric torsion (bloat), which is a medical emergency.

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6. Abdominal Discomfort

Dogs experiencing stomach pain may stretch into a “prayer position,” whine, avoid being touched, or seem restless. They may pace or struggle to get comfortable when lying down. Abdominal discomfort can stem from gas, inflammation, or irritation in the digestive tract. Gentle belly rubs may help some dogs, but persistent pain requires veterinary attention.

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7. Lethargy

When a dog’s stomach is upset, they may seem tired, withdrawn, or less interested in play. Lethargy often appears alongside other symptoms like diarrhea or vomiting. While mild fatigue can be normal during recovery, extreme or prolonged lethargy can indicate dehydration, infection, or a more serious underlying issue.

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8. Eating Grass

Many dogs instinctively eat grass when they feel nauseous. While this behaviour isn’t always harmful, it can sometimes lead to more vomiting. Occasional grass‑eating isn’t a major concern, but if your dog does it frequently or obsessively, it may be a sign of ongoing digestive discomfort or nutritional imbalance.

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🩺 What To Do When Your Dog Has an Upset Stomach

1. Start With a Short Fasting Period

For adult dogs, withholding food for 8–12 hours can give the stomach time to settle. This should not be done with puppies, very small dogs, or dogs with certain medical conditions. Always keep fresh water available.

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2. Offer a Bland Diet

Once the fasting period is over, introduce gentle foods such as:

• Boiled chicken (no skin or seasoning)
• Plain white rice
• Lean ground turkey
• Pumpkin purée (plain, not pie filling)

Feed small, frequent meals until stools return to normal.

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3. Keep Your Dog Hydrated

Upset stomachs can lead to dehydration, especially with vomiting or diarrhea. Offer small amounts of water frequently. You can also use:

• Dog‑safe electrolyte solutions
• Ice cubes for dogs who won’t drink

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4. Avoid Treats and Rich Foods

Even healthy treats can irritate a sensitive stomach during recovery. Stick to bland meals until your dog is fully back to normal.

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5. Monitor for Red Flags

Contact your vet if you notice:

• Vomiting or diarrhea lasting more than 24 hours
• Blood in vomit or stool
• A swollen or painful abdomen
• Refusal to drink water
• Extreme lethargy
• Signs of dehydration (dry gums, sunken eyes)

Senior dogs, small breeds, and dogs with chronic conditions should be monitored especially closely.

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6. Consider Long‑Term Digestive Support

If your dog has frequent stomach issues, long‑term strategies may help:

• Switching to a sensitive‑stomach diet
• Adding probiotics
• Feeding smaller, more frequent meals
• Avoiding sudden food changes
• Choosing highly digestible proteins

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🌿 Final Thoughts

An upset stomach can be uncomfortable for your dog and stressful for you, but understanding the signs helps you respond quickly and confidently. Most mild cases resolve with rest, hydration, and a gentle diet, but knowing when to seek veterinary care is key—especially for senior dogs or those with chronic digestive issues. With attentive care and a few simple adjustments, you can help your dog feel better and prevent future tummy troubles.

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