Gastrointestinal complaints such as belching, abdominal distension, abdominal pain, constipation or gastrointestinal flatulence are not caused by excessive gas. When intestinal gas is excessive, it may be caused by excessive air intake, poor nutrient absorption, increased gas production in intestinal cavity, decreased gas absorption caused by obstruction, and intestinal gas expansion caused by changes in barometric pressure. Gas content in the intestine - body volume recording belching - belching or belching refers to the retrograde discharge of gases from the esophagus or stomach from the mouth. The process may be spontaneous or non-spontaneous. Spontaneous belching usually occurs after meals and is caused by the release of swallowed air from the distended stomach.
Foods that relax the lower esophageal sphincter (such as chocolate, fat and mint) may promote belching.
Chronic, recurrent belching is a disease caused by habitual air deglutition (deglutition). In this case, the gas may only enter the esophagus before it is discharged. This variant is called "upper gastric belching". The belching of these patients often becomes a habit and may be mistaken for a manifestation of potential digestive problems. Epigastric belching occurs more frequently than gastric belching. According to the Roman IV criterion, belching is defined as the presence of disturbing esophageal or gastric belching more than three days a week (i.e., severe enough to affect daily activities). Performance over the past three months should meet these criteria and symptoms should begin at least six months before diagnosis.
According to the source of reflux gas, belching can be divided into:
Excessive belching in the stomach (from the esophagus)
Excessive belching in the stomach (from the stomach)
If frequent repeated belching is observed, the diagnosis of upper gastric belching is supported. Gastric belching has no definite clinical manifestations. Gastric upper belch and gastric belch can be distinguished by objective intracavitary