The authors present the incidence of bronchial obstruction in patients with pulmonary sarcoidosis basing on their own material from the years 1960-1988. Bronchial obstruction was diagnosed when the Tiffeneau index was lower than 70%. In the analyzed group 93 (5.7%) patients were found to meet the criterion for bronchial obstruction. Out of this group two forms were selected those with the pure bronchial obstruction and mixed, i.e. with coexistent restrictive changes. The author discuss the possible mechanism of developing bronchial obstruction in sarcoidosis.