What causes smelly flatulence?
Disease description:
Recently, I have been passing gas frequently, and it is extremely foul-smelling. I would like to know what might be causing this?
Doctor's answer (1)
Dr. Shen Yonghua
Main causes of foul-smelling flatulence include:
1. Poor eating habits: Consuming excessive amounts of gas-producing foods such as onions, sweet potatoes, or high-protein foods like meat and soy products. These foods can produce more sulfides during digestion in the intestines, resulting in foul-smelling flatulence.
2. Indigestion: When indigestion occurs, food remains in the intestines for an extended period, causing fermentation and gas production. These gases may contain compounds such as hydrogen sulfide, leading to a foul odor in flatulence. This may be related to poor eating habits, excessive gastric acid secretion, and other factors.
3. Constipation: In cases of constipation, fecal matter remains in the intestine for a prolonged time. Bacterial breakdown of the feces produces gases, including hydrogen sulfide, methane, and ammonia, which have an irritating odor and cause smelly flatulence.
4. Imbalance of intestinal flora: Dysbiosis of the intestinal microbiota can also lead to foul-smelling flatulence, as it alters the production and composition of intestinal gases.
5. Medical conditions: Digestive system disorders such as gastritis and enteritis may also cause foul-smelling flatulence. These conditions affect the normal functioning of the gastrointestinal tract, causing food to remain in the gastrointestinal tract for an extended period or resulting in indigestion, thereby producing malodorous gases.
