Chest obstruction can be caused by airway obstruction disease, lung disease, pleural effusion, developmental abnormality and other factors. 1. Airway obstruction diseases: foreign bodies or tumors outside the airway compress the airway, which can lead to airway obstruction, and the symptoms of chest obstruction can appear. 2. Lung diseases: pneumonia, tuberculosis, chronic obstructive pulmonary disease, bronchial dilatation, interstitial lung disease, etc. can cause dyspnea and chest congestion and other uncomfortable symptoms. 3. Pleural effusion: pleural effusion and other pleural diseases can also lead to dyspnea and chest congestion. 4. Developmental abnormalities: When accompanied by diseases such as posterior scoliosis and ankylosing spondylitis, the chest may be compressed due to abnormalities in the body structure, resulting in chest congestion. 5. Others: When there is a large amount of ascites, severe abdominal distension, diaphragmatic paralysis, etc., it can also lead to symptoms of chest obstruction. When the chest is blocked, you should consult a doctor in time, under the guidance of a specialist to actively carry out appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.