Also called: Belch, Burp, Eructation, Flatulence, Flatus
Everyone has gas. Most people produce about 1 to 4 pints a day and pass gas about 14 times a day. Passing gas through the mouth is called belching or burping. Passing gas through the rectum is called flatulence. Most of the time gas does not have an odor. The odor comes from bacteria in the large intestine that release small amounts of gases that contain sulfur.
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