Supragastric belching differs from common gastric belching. It can be detected by 24-hour intra-esophageal impedance monitoring. Belching is seldom the only symptom: reflux symptom is present in 95% and dysphagia in 65% of the patients. In supragastric belching, the air does not come from the stomach but instead from the esophagus. Belching is caused by the patient him/herself swallowing air into the esophagus. This voluntary but unconscious symptom is treated by therapy in which explaining the mechanism of belching for the patient and learning of correct diaphragmatic breathing technique play a central role. Habit reversal is utilized for teaching the patient to react correctly to preemptive symptoms.