Chest tightness feeling breathless need symptomatic treatment, the possible causes are: coronary heart disease, obstructive cardiomyopathy, etc., the treatment includes medication, surgical treatment, interventional therapy and so on. 1. Coronary heart disease: for stable angina pectoris, when the attack should immediately rest, the general patient in the stop activity after the symptoms gradually disappear. For more severe attacks, nitrate preparations can be used, such as sublingual nitroglycerin or isosorbide nitrate; for unstable angina or non-ST-segment elevation myocardial infarction, after proper examination and evaluation in the emergency room, restoration of reperfusion therapy should be started immediately. Interventional or surgical treatment is feasible when necessary. 2. Obstructive cardiomyopathy: β-blockers such as metoprolol or bisoprolol can be taken under the supervision of a doctor, and surgical treatment is feasible when necessary. In addition to the above diseases, heart failure, acute pleurisy, large amount of pericardial effusion or pleural effusion, severe tuberculosis and other diseases can cause chest tightness and feel out of breath, it is recommended that patients go to the hospital as soon as possible to find out the cause of the disease and then be targeted treatment.