Chronic obstructive emphysema lung disease is a prevalent chronic disease due to the presence of inflamed airways, resulting in pathologic and physiologic changes that further develop into pulmonary heart disease and respiratory failure. Causes of Chronic Obstructive Pulmonary Disease The exact cause of chronic obstructive pulmonary disease is unclear, generally elements associated with the development of chronic bronchitis and obstructive emphysema may trigger the onset of chronic obstructive pulmonary disease. The identified risk sources can be broadly categorized into external (i.e., environmental) and internal (i.e., personal susceptibility) causes. External causes include cigarette smoking, inhalation of tobacco smoke and compounds, environmental pollution, respiratory infections, and low socioeconomic developmental impact groups (which may be associated with in-room and outdoor environmental pollution, residential congestion, weak nutrients, and other factors associated with low socioeconomic developmental impact). Internal causes include genetically inherited elements, increased airway reflectivity, and a variety of reasons for poor lung growth or development during pregnancy, infancy, neonatology, or childhood. Clinical Symptoms of Chronic Obstructive Pulmonary Disease (1) Chronic cough is often the first symptom to appear, with the development of the current history of the disease can be lifelong difficult to cure, and is often significant in the morning cough, and in the evening there is a bout of coughing or phlegm inhalation. When the trachea is seriously blocked, there is usually only breathlessness without coughing. (2) Cough with sputum is usually milky white mucus or plasma foam sputum, occasionally with blood, more sputum aspiration in the morning. The amount of sputum increases during the subacute onset, and there will be purulent sputum. (3) Chest tightness and shortness of breath or dyspnea are clinical symptoms of lung disease, which initially appear during labor, and then slowly intensify to the extent that one feels chest tightness and shortness of breath when living and even resting. (4) Wheezing and chest tightness and shortness of breath are part of patients with moderate to severe disease or subacute exacerbation. (5) Other fatigue, lethargy, anxiety, etc. are often associated with the deterioration of COPD, but are not typical of the main manifestations of COPD. 2. Clinical symptoms (1) Visual diagnosis of the diaphragm before and after the right and left diameters expand, the rib space becomes wider, the angle of the lower angle of the scapula under the raphe becomes wider, which is called barrel chest, part of the patient’s inhalation becomes pale, the frequency becomes faster, and the situation is serious enough to have thoracic respiration and so on. (2) Palpation of bilateral fibrillation becomes weak. (3) The lungs are too clear on percussion, the heart turbid tone boundary becomes smaller, and the lung lower boundary and liver turbid tone boundary decrease. (4) Stethoscopic breath sounds in both lungs become weaker, breathing increases, and some patients can hear and wet rales and (or) partial dry rales. Patients with chronic obstructive pulmonary disease have significant dyspnea and cough at the onset of the disease. Clinical symptoms are also very significant changes, grasp this characteristic is beneficial to the diagnosis of the disease and early treatment, understand the causes of the disease we should pay more attention to life and living, proactive approach to change the status quo, to prevent infectious diseases from the source, I hope to help you.