Abdominal bloating is a condition in which the abdomen swells and gets tight. More common in women, it can cause belly pain that varies from mild to intense. It is provoked by excess gas, when said gas does not pass through belching or flatulence and therefore builds up in the stomach and intestines, or by an excessive reaction to normal gas production e.g. hypersensitivity of the bowel. In general, people suffering from bloating have flatter bellies in the morning that progressively become more distended over the day.