Bloating describes an accumulation of gas in the colon. Bloating is not dangerous in itself, it is however disagreeable. It is due to an excess amount of carbon dioxide in the digestive tract, either from food ingested with a higher quantity of air than normal, or by an excess production of gas during the course of digestion (the role of digestive bacteria in fermentation). The principal symptoms of bloating are swollenness, abdominal pain
and belching (burps). Certain medications can diminish the quantity of air in the digestive tract and relieve the symptoms.