Farting is not loud and smelly may be due to dietary factors, intestinal flora imbalance, indigestion, constipation, enteritis and other reasons. 1. Dietary factors: eating too much high-protein meat, onions, leeks, garlic and other foods can cause farts to be smelly, generally adjust the diet can be improved. 2. intestinal flora imbalance: harmful bacteria in the intestinal tract and fecal fermentation produces foul-smelling gas, which can cause farts to be smelly. 3. indigestion: gastrointestinal peristalsis is slow, food stagnates in the stomach after fermentation and produces foul-smelling gas, the gas is discharged into the intestinal tract, causing farts to be foul-smelling, often accompanied by bloating, nausea and other symptoms. 4. constipation: fecal matter is retained in the intestine for a long time and fermentation causes farting and stinky symptoms. 5. enteritis: the infection of the intestinal tract by pathogenic bacteria can also cause increased farting, fart smell, accompanied by diarrhea, abdominal pain and other symptoms. If you can’t improve your farting by adjusting your diet, we recommend that you consult a doctor to find out the cause of your farting, and treat the cause of your farting.