Introduction Severe blunt injury of the chest can cause rupture of the tracheobronchial tree. After completed management of the injury, stenosis of the bronchi may develop at the site of the rupture. Such condition is associated with pathophysiolocical disorders, which then indicates to the possible presence of the bronchial stenosis. Case report We report a patient with stenosis of the right main bronchus due to blunt injury sustained in a traffic accident. We present all pathophysiological signs detected during examination. The patient had dyspnea, cianosis, tachycardia, low oxygen saturation and low pO2. We performed right thoracothomy and resection of the main bronchus with TT anastomosis. Conclusion It is very useful to understand the described pathophysiological signs so as to ensure rapid diagnosis of stenosis, but also better and timely solving of problems that can occur during thoracothomy.