Bronchiectasis, or bronchial dilatation, is a chronic disease of irreversible expansion of the bronchial tubes and fine bronchial tubes due to recurrent airway infections and inflammation, which can be slowed down by medication and lifestyle. Currently, bronchiectasis cannot be completely cured by medication, but through standardized treatment, the development of the disease can be slowed down and further deterioration of the disease can be prevented. Bronchiectasis is mainly characterized by chronic coughing, coughing up large amounts of purulent sputum, and repeated hemoptysis. Control of bronchiectasis should pay attention to avoid infection, improve their own immunity, such as sputum excessively active position drainage, try to keep the living environment neat and clean, try to avoid upper respiratory tract infections. It is recommended to go to the regular hospital for treatment as soon as possible if symptoms occur, regular follow-up, and medication if necessary.