A small amount of bronchiectasis may prevent its further progression when it is effectively controlled. Bronchiectasis is usually caused by recurrent suppurative inflammation of the bronchi following respiratory infections and bronchial obstruction, which results in destruction of the structure of the bronchial wall. Generally, this destruction is irreversible, but in cases where bronchiectasis is limited in extent, aggressive treatment may be effective in controlling it and improving the quality of life and prolonging life expectancy, so it is recommended to standardize the diagnosis of bronchiectasis in a timely manner. However, if the bronchiectasis is secondary to fibrosis, it may continue to develop with the aggravation of pulmonary fibrosis and requires attention. Mild bronchiectasis can be controlled by medication, but more attention should be paid to prevention in daily life. Strengthening exercise and physical fitness as well as improving the resistance of the respiratory tract, preventing upper respiratory tract infections, and avoiding inhalation of harmful substances can reduce the progression of the disease.