Abstract. The share of mechanical chest injuries in the structure of combat trauma is 35-45 % of the total number of chest injuries. More than 70 % of cases of closed injuries of the chest are mainly the result of the indirect effect of the blast wave. At the same time, bruises and ruptures occur more often, cavities in the lungs are formed less often. A high velocity of the damaging factor leads to alveolar trauma or subpleural hematomas, while a low velocity leads to central lung ruptures or large bronchus ruptures. The main methods of diagnosing lung damage due to closed combat trauma of the chest are radiological, which include standard x-ray examination, spiral computer tomography, and ultrasound diagnostics. The majority of domestic and foreign authors believe that among all methods of diagnosing lung damage, priority belongs only to CT as a highly informative and sensitive research method. The main task in the treatment of lung abscess is the active prevention of atelectasis, edema, pneumonia, abscess formation and the development of ARDS. The most difficult point in the treatment of patients with closed lung injuries is determining the indications for thoracotomy.