If you’ve ever noticed your dog munching on grass and then heard their stomach making strange noises, you might be wondering what’s going on.
Is this normal behavior? Could it be a sign of an upset stomach or something more serious?
We outline why your dog is eating grass and why their stomach might be making noises, what these signs mean, potential causes, and when you should seek veterinary care.
Table of Contents
Here’s Why Dog Eating Grass and Stomach Making Noises Happens
Dog eating grass and stomach making noises often go hand in hand because both can be signs of digestive discomfort or natural behaviors related to a dog’s gut health. When a dog’s stomach is upset—due to indigestion, gas, or mild nausea—they may instinctively eat grass to help soothe their stomach lining or induce vomiting to relieve discomfort.
The stomach noises are caused by the movement of gas and fluids through the intestines and often accompany digestive upset or hunger.
Dogs eating grass and stomach making noises are two common behaviors that often occur together. Many dog owners see their pets nibble on grass during or before episodes of stomach rumbling, gurgling, or even vomiting.
Dog eating grass is a well-observed but not entirely understood behavior. Some dogs eat grass simply out of boredom or habit, while others do it to help soothe an upset stomach.
Stomach making noises — also called borborygmi — typically happens due to gas or movement of fluids in the intestines. It can be normal or sometimes indicate digestive upset.
Common Causes of Dog Eating Grass and Stomach Making Noises
Many dog owners notice that their dog eats grass and then their stomach makes noises or their dog vomits shortly after.
This connection often points to an upset stomach or digestive irritation.
When dogs feel nauseous or have indigestion, they may instinctively eat grass to help soothe their stomach lining or induce vomiting to expel something irritating inside their gut.
The stomach noises may be the body’s response to this irritation or an attempt to move gas or fluids through the intestines.
1. Dietary Causes
Sudden diet change: Switching your dog’s food abruptly can upset their digestive system causing gas, stomach noises, and grass eating.
Food intolerance or allergy: Some dogs develop sensitivities to ingredients in their food, leading to stomach upset and digestive noises.
Poor-quality food: Low-quality dog food with fillers or artificial ingredients can contribute to digestive discomfort.
2. Gastrointestinal Issues
Gastroenteritis: Inflammation of the stomach and intestines caused by infections, parasites, or toxins can cause stomach noises, vomiting, and grass eating.
Parasites: Worms or other parasites can irritate the gut causing digestive symptoms including stomach rumbling.
Indigestion or constipation: Gas buildup or difficulty passing stool can lead to stomach noises and grass eating to ease discomfort.
3. Stress and Anxiety
Stressful situations like new environments, loud noises, or changes in routine can cause digestive upset and behaviors like grass eating.
Anxiety can increase stomach acid production leading to discomfort and noises.
Related: Dog eating grass and panting (Here’s why)
4. Boredom and Behavioral Causes
Dogs that lack stimulation or are bored may develop grass eating as a repetitive behavior.
Stomach noises could be unrelated but coincidentally present.
5. Poisoning or Toxicity
Sometimes dogs eat grass because they feel unwell after ingesting a toxic substance. Stomach noises, vomiting, and other symptoms might follow.
Immediate vet care is needed if poisoning is suspected.
What to Do If Your Dog is Eating Grass and Their Stomach is Making Noises
While occasional grass eating and stomach noises are normal, if these behaviors persist or are accompanied by other symptoms, it’s important to take action.
Monitor Your Dog’s Behavior
Note the frequency and timing of grass eating and stomach noises.
Check if your dog vomits after eating grass.
Look for other symptoms like diarrhea, lethargy, loss of appetite, or dehydration.
Check Your Dog’s Diet
Avoid sudden diet changes; transition gradually over 7-10 days.
Ensure your dog’s food is high-quality and appropriate for their age, breed, and health.
Avoid table scraps or potentially harmful foods.
Provide Adequate Exercise and Mental Stimulation
Boredom can cause grass eating, so enrich your dog’s environment with toys, walks, and playtime.
Keep Your Dog Hydrated
Proper hydration aids digestion and reduces stomach discomfort.
When to Seek Veterinary Help
Contact your veterinarian if your dog eating grass and stomach making noises are accompanied by any of the following signs:
Frequent or violent vomiting
Diarrhea lasting more than 24 hours
Blood in vomit or stool
Lethargy or weakness
Loss of appetite
Signs of pain, such as whining or reluctance to move
Excessive drooling
Rapid breathing or panting
Suspected poisoning
These signs may indicate a more serious condition like gastrointestinal infection, obstruction, or poisoning that requires immediate veterinary attention.
Related: Dog eating grass and drinking lots of water (Here’s why)
Diagnosing the Cause
Your vet will typically begin with a thorough history and physical examination.
They may ask about your dog’s diet, recent behavior, and any exposure to toxins or new environments.
Diagnostic tests may include:
Fecal exam for parasites
Blood tests to check organ function and infection
X-rays or ultrasound to evaluate gastrointestinal tract
Allergy testing if food intolerance is suspected
Treatment Options
Treatment depends on the underlying cause but may include:
Dietary changes: hypoallergenic or easily digestible diets
Medications to control vomiting, diarrhea, or inflammation
Deworming if parasites are detected
Stress management and behavioral modification
Fluid therapy for dehydration
Key Takeaway
A dog eating grass and their stomach making noises are often signs of digestive upset or normal behaviors related to hunger or boredom.
Occasional grass eating and mild stomach noises are usually not a cause for alarm.
However, persistent grass eating accompanied by loud stomach noises, vomiting, diarrhea, or other concerning symptoms should prompt a visit to your veterinarian.
By understanding the possible causes and monitoring your dog’s health, you can ensure your furry friend stays happy and comfortable.