Objective: To summarize the application of non-pain bronchoscopy in diagnosis and treatment of pediatric pulmonary disorders.Methods: Under general anesthesia

Olympus BF3c-20 bronchoscopy was used for examination and/or treatment of 45 cases of acute pneumonia

chronic pneumonia complicated with atelectasis

chronic cough and refractory wheezing.Results: In 45 cases

26 were males and 19 were females.The age was between 4 months and 13 years.Under the bronchoscopy

the manifestations of 17 cases diagnosed as atelectasis by X-ray or CT included congestion

swollen and inflammatory narrowness and clogged by mucus secretion and 10 cases were cured after bronchial lavations.In 7 cases with refractory wheezing

4 cases were found foreign body aspiration and abnormalities at the bronchi opening were observed in the other 3 cases.Conclusion: Non-pain bronchoscopy is safe and can decrease the possible injury risk of respiratory tracts as a result of lack of cooperation of the diseased children.Non-pain bronchoscopy has important value for diagnosis and treatment of atelectasis

as well as diagnosis of foreign body.