To assess the correct role of operation in the management of bronchiectasis, two hundred and fifteen patients with bronchiectasis seen at the Thoracic & Cardiovascular Surgery Dept. of Catholic Medical College in Korea between 1972 & 1981 were reviewed and studied the combined disease [Pulmonary tuberculosis, paranasal sinusitis and general nutrition]. The result were as follows: 1.The incidence ratio of male to female was 1.8:1 & the age of second decade occupied 4596 of the total. 2.Bronchiectasis may occur in any lobe, however the vast majority of the cases are occur in dependent portion of the lung - basilar segment of the lower lobes, middle lobe, and lingular segment. Isolated upper lobe bronchiectasis is commonly associated with tuberculosis. 3.The bronchiectasis combined with the paranasal sinusitis was 25 patients [11.6%] in our cases and these occurred usually in both lower lung fields. 4.The average body weight of bronchiectasis patients were about 10 kilogram less than compairing to predicted normal body weight of Korean healthy person.