4-Abdominal distention
By itself, abdominal distention is not a sensation, but a noticeable sign that another person or the patient himself may notice after looking at the mirror. Although it was previously thought to be caused by the presence of gases in the gastrointestinal tract, recent studies have ruled out that approach. It is a voluntary muscular maneuver, related to the posture, which causes the diaphragm to descend and move the visceral organs of the abdominal cavity down and forward. Even so, sometimes, abdominal distension and gases coincide, and that’s when patients have associated symptoms such as bloating and abdominal discomfort.