Lung cysts, also known as bronchopulmonary cysts, include congenital lung cysts and acquired lung cysts, manifested by fever, cough, chest pain, hemoptysis and other symptoms. 1. Congenital pulmonary cysts: mainly caused by abnormal development of lungs during embryonic period, this kind of people usually have no obvious clinical symptoms, but may be due to recurrent respiratory infections and thus show symptoms, such as fever, cough, sputum, dyspnea, chest tightness and so on. 2. Acquired pulmonary cysts: such as sequelae of cysts caused by violent trauma and infection, and cysts caused by parasites. This kind of people can mainly manifest as chest pain, shortness of breath, dyspnea, cough, hemoptysis and other symptoms. It is recommended that people with the above symptoms should consult a doctor in time, and after confirming the diagnosis of lung cysts with chest imaging, appropriate treatment should be carried out according to the cause of the lung cysts.