What symptoms can occur if you have a lot of gas in your stomach?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Excessive gas in the stomach commonly causes bloating, a visibly distended belly, abdominal discomfort, and stomach pain. Gas buildup can result from swallowed air, certain foods, digestive conditions, or gut bacteria imbalances.

Common symptoms of excess stomach gas include:

Bloating and a feeling of fullness
Visible belly distension
Abdominal discomfort or cramping
Stomach pain or pressure

While occasional gas is normal, persistent or severe symptoms may signal an underlying digestive issue worth investigating. Because bloating and abdominal pain can stem from many possible causes—ranging from simple dietary triggers to conditions like IBS, food intolerances, or gastritis—understanding your specific symptoms is the fastest way to find relief. Take a free, instant, online symptom check to get personalized insights about what may be causing your discomfort and clear guidance on your next steps.

Reviewed for medical accuracy: 07/15/2026

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Explanation

When you have a lot of gas in your stomach, you might feel bloated, which means your tummy feels full and tight. This can also make your belly look bigger than usual. Sometimes, you might feel pain or discomfort in your belly.

Common Symptoms

Bloating: This is when your stomach feels full and tight.
Abdominal Distension: Your belly might look bigger than normal.
Discomfort or Pain: You might feel a tummy ache or some discomfort.

These symptoms can happen because of different reasons, like eating certain foods or having a condition like irritable bowel syndrome. If you notice these symptoms often, you can use a free symptom checker to help identify what might be causing them and determine whether you should talk with a healthcare provider.

(References)

Hasler WL. (2007). Irritable bowel syndrome and bloating. Best practice & research. Clinical gastroenterology, 17643909.
Chang L, Lee OY, Naliboff B, Schmulson M, & Mayer EA. (2001). Sensation of bloating and visible abdominal distension in .... The American journal of gastroenterology, 11774947.
Lacy BE, Cangemi D, & Vazquez-Roque M. (2021). Management of Chronic Abdominal Distension and Bloating. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 32246999.

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