Objective: Plastic bronchitis (PB) is a rare disease characterized by obstruction of the airway by fibrinous mucus plugs. The etiology can be idiopathic or secondary to systematic diseases such as congenital heart diseases. Definitive diagnosis is made by pathological examination of the sputum or bronchial sample taken by bronchoscopy. In this study, the clinical status and treatment status of patients with PB were evaluated. Materials and Methods: Medical records of the patients diagnosed as PB were reviewed ret-rospectively. Age, gender, clinical symptoms, radiology, bronchoscopic findings, and pathology results were documented. Results: Six patients with PB were included in this study (female:male, 2:4). The median age of the diagnosis was 45 months. The most common symptoms are persistent wet cough and short-ness of breath. The duration of symptoms ranged from 30 to 90 days. Atelectasis was the most common radiological finding. Diagnosis was made with pathological examination of the mucus in all patients. All of the patients were treated with bronchoscopic removal of the mucus, and 4 patients required oral prednisolone therapy. Symptoms and radiological findings resolved completely in all patients. Conclusion: Although PB is a rare disease, it should be kept in mind in relation to patients with persistent radiological and clinical respiratory symptoms.