Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): cough, shortness of breath, shortness of breath. Hospital respiratory department: Hello, from the CT it seems that you have cystic bronchial dilatation with infection, cough, sputum is also the clinical symptoms of bronchial dilatation, and cause lung function decompensation, shortness of breath is its performance. Firstly, we suggest you to quit smoking, and secondly, we suggest you to visit our respiratory clinic for treatment of bronchiectasis with infection and pulmonary function. It is advisable to bring the results of pulmonary function tests when you come to the clinic.