Chest suffocation may be due to functional chest tightness, psychological factors, pathology and other reasons. 1. Functional chest tightness: that is, there is no organic lesion but the cause of chest tightness, there are environmental factors, such as in the windows and doors are closed, the air does not circulate in the room for a long time, there may be a hard to hold the chest. 2. Psychological factors: encountering unpleasant things in life or quarrelling with others may also cause the phenomenon of unbearable chest suffocation. 3. Pathological: lung tumors, trachea, bronchial stenosis or tumor compression of adjacent organs, and there are lung diseases, pneumonia, bronchitis and so on. In addition, there are some congenital heart diseases, such as congenital heart disease, heart tumor, coronary heart disease and so on may also cause unbearable chest holding. Patients with unbearable chest suffocation are recommended to go to the hospital in time for examination, to clarify the cause of the disease, and to carry out standardized treatment under the guidance of the doctor.