Mediastinal emphysema is a general disease if a small amount of mediastinal gas collects; however, if a large amount of gas collects, the condition is more serious and does not belong to a general disease. If only a small amount of mediastinal gas aggregation caused mediastinal emphysema, belongs to the general disease, the condition is not serious, the majority of patients with symptoms are not obvious, through timely oxygen intake, bed rest, etc., the condition will be gradually reduced, and return to normal. However, if a large amount of gas collects at the connective tissue of the mediastinum, it is more serious, and the patient will have severe chest tightness, dyspnea, shortness of breath, and other symptoms, and in serious cases, there will be a risk of asphyxiation, so at present, it is necessary to take oxygen as soon as possible, and to ensure that the oxygen content is sufficient. When the mediastinal emphysema is found, you need to go to the hospital regularly for review, and if necessary, you can choose to be hospitalized for observation, and according to the degree of severity of the disease to choose the appropriate treatment plan, so as not to threaten the life of the patient.