Flatulence is an unpleasant symptom characteristic of many diseases It occurs when the processes of putrefaction and fermentation are activated. They stimulate increased gas production and the subsequent excessive secretion of gas. This can happen with dysbacteriosis, irritable bowel syndrome, cholelithiasis, celiac disease, and... And with a huge number of other pathologies - we will not bore you with their enumeration. By the way, raw vegetables and plenty of bran often lead to flatulence, keep in mind.