Flatulence is the act of passing gas through the anus which is a normal part of human physiology. It is not usually reported as a symptom unless it is excessive resulting in frequent passing of flatus. The term flatulent is therefore accepted as excessive flatulence or frequent flatulence, in excess of the 15 to 20 times a day that flatus is normally expelled.
A person who is flatulent experiences significant emotional distress as the passing of flatus may be uncontrollable and occur in social settings, often at the most inopportune times. This is exacerbated if the flatus is unusually foul in odor and passing of the gas is loud.