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Meteorism: Causes, Symptoms and Treatment

Meteorism refers to an excessive accumulation of gas in the gastrointestinal tract, causing abdominal bloating and discomfort. Common causes include dietary habits and digestive disorders.

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Things worth knowing about "Meteorism"

Meteorism refers to an excessive accumulation of gas in the gastrointestinal tract, causing abdominal bloating and discomfort. Common causes include dietary habits and digestive disorders.

What is Meteorism?

Meteorism is a condition characterised by an abnormal accumulation of gas in the gastrointestinal tract, resulting in visible and noticeable abdominal distension. The term originates from the Greek word meaning “lifted upward.” In everyday language, it is often referred to as a bloated belly or abdominal bloating. Meteorism is a common complaint that affects many people at least occasionally and can have both harmless and more serious underlying causes.

Causes

The causes of meteorism are diverse and can be categorised as dietary, functional, or organic:

Dietary causes: Certain foods such as legumes, cabbage, onions, carbonated beverages, and high-fibre foods promote gas production in the intestines.
Swallowing air (aerophagia): Eating too quickly, chewing gum, or drinking through a straw can introduce excess air into the digestive tract.
Functional bowel disorders: Irritable bowel syndrome (IBS) is one of the most common functional causes of meteorism, involving altered gut motility and increased visceral sensitivity without structural damage.
Food intolerances: Lactose intolerance, fructose malabsorption, or gluten intolerance (coeliac disease) can lead to increased gas production in the intestines.
Gut microbiome imbalance: Dysbiosis or small intestinal bacterial overgrowth (SIBO) can significantly increase intestinal gas production.
Organic diseases: Chronic inflammatory bowel diseases such as Crohn's disease or ulcerative colitis, as well as diseases of the pancreas or liver, can cause meteorism.

Symptoms

The main symptom of meteorism is visible abdominal distension, which may be accompanied by a feeling of pressure or pain. Other typical symptoms include:

Abdominal pressure and pain
Audible or palpable intestinal sounds (borborygmi)
Frequent belching
Increased passing of gas (flatulence)
Feeling of incomplete bowel emptying
Nausea in some cases

Diagnosis

Diagnosis of meteorism is primarily based on a thorough medical history (anamnesis) and physical examination. Depending on the suspected cause, further diagnostic measures may be required:

Breath tests: Hydrogen breath tests are commonly used to detect lactose intolerance, fructose malabsorption, or SIBO.
Blood tests: To check for inflammatory markers, coeliac disease antibodies, or thyroid dysfunction.
Abdominal ultrasound: To assess internal organs and exclude structural abnormalities.
Colonoscopy: Indicated when chronic inflammatory bowel disease or other organic causes are suspected.
Stool analysis: To detect infections or changes in the gut microbiome.

Treatment

Treatment depends on the underlying cause. In many cases, simple measures can significantly relieve symptoms:

Dietary Adjustments

Targeted changes to dietary habits are often the first and most effective step. Avoiding gas-promoting foods, eating slowly, and maintaining regular mealtimes can help. In confirmed intolerances, the offending substance (e.g., lactose, fructose, or gluten) should be eliminated from the diet.

Medication

Antifoaming agents (e.g., simethicone, dimethicone): These agents reduce the surface tension of gas bubbles in the intestine, facilitating their passage.
Herbal preparations: Extracts of caraway, fennel, and anise have carminative (gas-relieving) properties.
Probiotics: May help restore gut microbiome balance in cases of dysbiosis.
Antispasmodics: Muscle-relaxing medications can be used to relieve cramping abdominal pain.

Lifestyle Changes

Regular physical activity promotes intestinal motility and can help prevent meteorism. Stress reduction is also important, as stress can negatively affect digestion.

When to See a Doctor

Occasional meteorism is usually harmless. However, medical advice is recommended if symptoms:

Persist for more than a few weeks
Are accompanied by severe abdominal pain, unexplained weight loss, blood in the stool, or fever
Significantly affect daily life

In these cases, an organic cause should be ruled out by a healthcare professional.

References

Layer P. et al. - S3-Leitlinie Reizdarmsyndrom. AWMF-Registernummer 021-016, 2021.
Lacy BE et al. - Bowel Disorders. Gastroenterology. 2016;150(6):1393-1407.
World Gastroenterology Organisation (WGO) - Global Guidelines: Irritable Bowel Syndrome (2015). Available at: www.worldgastroenterology.org

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