The reasons for the blockage of the heart may be esophageal or gastric lesions, heart disease, lung disease and other factors, which are summarized as follows. 1. Esophageal or gastric lesions When there is esophagitis, esophageal ulcer, esophageal tumor or gastritis, gastric ulcer, gastric tumor and other diseases, it will lead to the symptom of gas in the heart. This can be clarified through examinations such as gastroscopy. 2. Heart disease Commonly seen in coronary atherosclerotic heart disease, heart valve disease, cardiomyopathy and other heart diseases, which can lead to myocardial ischemia and hypoxia, cardiac insufficiency, and symptoms such as feeling uncomfortable with gas in the heart. 3. Lung diseases When the lungs exist emphysema, chronic bronchitis, pulmonary embolism and other lung diseases, it will lead to the situation that the heart is blocked by air. 4. Other factors Somatization disorders such as anxiety and depression can also lead to a feeling of having a blockage of air in the heart. In addition, anemia, hyperthyroidism, uremia and other systemic diseases, can also appear in the heart of the symptoms of air blockage. In short, if the heart has a gas blockage situation, must be timely hospital consultation, clear the cause of the disease, for the cause of the treatment.