Tracheobronchial injury following blunt thoracic trauma is uncommon, and an isolated intermediate bronchus disruption is even rarer. Herein, we reported a 24-year-old woman who sustained blunt thoracic injury and presented with dyspnea, subcutaneous emphysema, pneumothorax, and pneumomediastinum. The symptoms were relieved after bilateral tube thoracostomy. Nine months after the event, she complained of dyspnea and presented at a local hospital, where total obstruction of her intermediate bronchus was confirmed by bronchoscopy; she was then referred to our hospital for surgical management. She underwent sleeve resection of the intermediate bronchus and had an uneventful recovery. A high index of suspicion with the liberal use of bronchoscopy is necessary for the timely diagnosis and effective treatment of this rare entity.