The full name of pulmonary heart disease is pulmonary heart disease. Diagnosis can be made on the basis of symptoms and signs, while the disease can be prevented or treated. The main symptoms include cough, sputum, shortness of breath, palpitations, dyspnea, fatigue and decreased labor endurance after activity, abdominal distension and nausea in right heart failure, and in severe cases, agitation, cold sweats, confusion, fainting, cyanosis and shock. According to the history of chronic obstructive pulmonary disease or chronic bronchitis, emphysema, or other chest and lung diseases with signs of increased pulmonary artery pressure, right ventricular enlargement, or right heart insufficiency, such as jugular vein raging, P2>A2, enhanced cardiac pulsation under the raphe, hepatic tenderness, positive hepatic and jugular reflux sign, and edema of the lower extremities, electrocardiogram, X-ray chest radiograph, and echocardiogram have pulmonary artery widening and right heart enlargement, signs of hypertrophy, the diagnosis can be made. Treatment is active control of infection, patency of the airway, improvement of respiratory function, correction of hypoxia and carbon dioxide retention, control of respiratory failure and heart failure, and prevention of complications. The disease can be treated or prevented from acute exacerbation, and daily attention should be paid to keep warm, strengthen resistance, and avoid infection triggering. If there is any acute exacerbation symptom mentioned above, it is recommended to go to the hospital immediately, do not be negligent, so as not to delay or aggravate the condition.