Shortness of breath and dyspnea are commonly seen in bronchial asthma, left heart failure, angina, etc., and appropriate treatments need to be taken according to the corresponding diseases. 1. Bronchial asthma: it is a kind of airway hyperresponsiveness disease, clinical symptoms are mainly episodes of expiratory dyspnea with rales, which may be accompanied by shortness of breath, chest tightness or cough. Treatment requires timely inhalation of glucocorticoids such as budesonide or bronchodilators such as salbutamol. 2. Left heart failure: common symptoms are shortness of breath, decreased activity tolerance, exertional dyspnea, etc. The disease needs to be treated by taking diuretics such as furosemide and digitalis drugs such as digoxin. 3. Angina pectoris: the attack is often induced by physical labor or emotional excitement, the typical symptom is the pressure pain in the anterior region of the heart or the back of the sternal body, and the symptoms can be severe with dyspnea, sweating, and a sense of imminent death. Treatment can use aspirin antiplatelet, atorvastatin to stabilize plaque, isosorbide mononitrate to expand the crown and other internal comprehensive treatment, if necessary, intervention. Shortness of breath, dyspnea can also be caused by other reasons, such as pneumonia, pneumothorax, acute asthmatic bronchitis, pulmonary embolism, etc. If the symptoms are not relieved or aggravated, it is recommended to consult a doctor in time, improve the examination, clarify the diagnosis, and comply with the doctor’s instructions for treatment.