Bronchiectasis often occurs when the bronchial tubes have anatomical defects, or severe immune disorders, genetically related, resulting in limited bronchial dilatation, which may be due to pneumonia or a foreign tumor, compression, etc. If the bronchiectasis sign does not recur, it means that the primary cause of dilatation has been relieved, such as a foreign body or compression or obstruction, and most patients with bronchiectasis of 10 years or more are difficult to cure, and usually causes abnormalities in the structure of the bronchial tubes, leading to permanent dilatation. The patient will have chronic cough, profuse sputum, recurrent hemoptysis, and recurrent lung infections. The main focus of treatment is to address the symptoms, improve the patient’s ventilation, remove respiratory secretions, and control the patient’s condition with sputum-modifying medications and bronchodilators.