Farting (flatulence) is a natural process, but it can be embarrassing to accidentally pass a smelly fart in front of other people, especially in a confined space. Why do farts stink? If you often pass foul-smelling gas, beware of gastrointestinal problems, or even colorectal cancer.
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Flatulence is a process in which the body expels gas. Dr. Yao-Chun Hsu, director of the Center for Liver Diseases, E-Da Hospital, Kaohsiung, Taiwan, and a gastrointestinal hepatobiliary physician, pointed out that the organs along the gastrointestinal tract of the human body are all connected. Gas coming out of the mouth includes belches and burps, and the gas coming out of the anus is farts; they are essentially gases discharged from the gastrointestinal tract.There are two types of gas in the gastrointestinal tract:
- Exogenous: gas that enters the body from the outside. In general, gas is swallowed when one’s talking while eating or eating too fast. Gas and discomfort in the upper gastrointestinal tract often arise from these causes. Most of these gases are expelled by belching, but a small part of the gas may go all the way down and eventually turn into farts.
- Endogenous: gas coming out of the anus; mainly caused by endogenous factors and produced by the gastrointestinal tract; it is related to intestinal bacteria. Gases are released when the food eaten is broken down and used by intestinal bacteria.
