Typical symptoms of pulmonary embolism include dyspnea, coughing up sputum, chest pain and other manifestations, which need timely treatment. 1. Difficulty in breathing: it is a common symptom of pulmonary embolism, which is mainly caused by the obstruction of the respiratory function of the lungs, especially after exercise. 2. Coughing and sputum: It is mainly due to the abnormal function of gas circulation in the lungs, resulting in the phenomenon of coughing as the gas cannot be exchanged smoothly after the embolism in the lungs. 3. Chest pain: It is mainly due to the obstruction of blood vessels in the lungs and the abnormal circulation of blood flow in the body, which triggers the phenomenon of ischemia in the lungs, thus chest pain occurs. When the above symptoms occur in patients who smoke and are bedridden all year round, pulmonary embolism should be highly suspected, and it is necessary to go to the hospital in time to get a clear diagnosis and treatment plan.