Patients who feel tightness in the chest and difficulty in breathing are mainly caused by heart disease and respiratory disease. At this time, it is necessary to actively treat these primary diseases so as to relieve the symptoms of chest tightness and dyspnea. In addition to the treatment of these diseases, oxygen and other symptomatic treatments are needed, and attention should be paid to diet and rest in general. If the disease is caused by cardiovascular system, it should be treated according to the cause and actively treated symptomatically; if it is caused by infectious diseases of the respiratory system such as bronchitis and pneumonia, it needs anti-infection treatment against the causative organism, and symptomatic treatment such as reducing phlegm and relieving cough and expanding airway should be actively given. If it is caused by allergic factors, or bronchial asthma, etc., it needs to be treated with bronchodilatation, anti-allergy, anti-inflammation, etc. Therefore, when bleeding chest tightness breathing difficulty, it is necessary to improve the relevant examination and systemic diagnosis and treatment for the cause.