Please note: This information was current at the time of publication. But medical information is always changing, and some information given here may be out of date. For regularly updated information on a variety of health topics, please visit familydoctor.org, the AAFP patient education website.

Information from Your Family Doctor

Gas, Bloating, and Belching

 

Am Fam Physician. 2019 Mar 1;99(5):online.

  See related article on gas, bloating, and belching

What causes gas, bloating, and belching?

Most people have had excess gas, bloating, or belching. Sometimes these symptoms can cause problems or pain.

Bloating is a sensation of belly fullness. Sometimes your belly looks bigger, but not always. People with bloating do not necessarily have too much gas in their stomach, but they are often much more sensitive to stomach symptoms.

Belching (or burping) is usually caused by swallowing too much air, eating or drinking too fast, drinking carbonated or caffeinated drinks, smoking, or a nervous habit.

Flatulence [FLAA-chu-lentz] is the release of excess gas in the colon. It is usually related to your diet.

Most of the time, one or more of these disorders—irritable bowel syndrome, dyspepsia, or chronic constipation—are the cause of gas, bloating, and belching.

Gas, bloating, and belching are not typical symptoms of cancer or other dangerous conditions, even if you also have abdominal pain, diarrhea, or constipation. However, you should let your doctor know if you are losing weight, having fevers, or bleeding. These symptoms can be more serious.

Although anxiety, depression, and stressful life events do not cause these conditions, they may make the symptoms worse and harder to treat.

How are these symptoms treated?

Even severe symptoms usually improve over time with diet and lifestyle changes. Your doctor can help you decide which treatments are best for you.

Diet: Eat and drink more slowly to swallow less air. Limit fatty and spicy foods. Avoid caffeine, carbonated drinks, and artificial sweeteners. Avoid common gas-causing foods, such as beans, peas, lentils, cabbage, onions, broccoli, cauliflower, and whole grains. Try removing one food at a time from your diet to see if your gas improves.

Fiber: Fiber has many benefits, although too much fiber may increase the amount of gas in your intestines.

Exercise: Regular daily exercise often reduces symptoms in the stomach and intestines.

Laxatives: Over-the-counter laxatives, such as polyethylene glycol (one brand: Miralax), may help with constipation but probably not with stomach pain.

Antidiarrheal medicines: Over-the-counter loperamide may help with diarrhea but probably not with stomach pain.

Probiotics: Probiotics are found in some over-the-counter supplements and yogurts. Common probiotics are Lactobacillus and Bifidobacterium.


This handout is provided to you by your family doctor and the American Academy of Family Physicians. Other health-related information is available from the AAFP online at http://familydoctor.org.

This information provides a general overview and may not apply to everyone. Talk to your family doctor to find out if this information applies to you and to get more information on this subject.

 

Copyright © 2019 by the American Academy of Family Physicians.
This content is owned by the AAFP. A person viewing it online may make one printout of the material and may use that printout only for his or her personal, non-commercial reference. This material may not otherwise be downloaded, copied, printed, stored, transmitted or reproduced in any medium, whether now known or later invented, except as authorized in writing by the AAFP. Contact afpserv@aafp.org for copyright questions and/or permission requests.

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