Excessive reverberation in the chest can be seen in pneumothorax, where the patient has a bulging chest, decreased respiratory motion and fibrillation, excessive reverberation or drumming on percussion, and decreased or absent breath sounds on auscultation. Various kinds of chest trauma are common, including sharp-arm stab wounds and gunshot penetration wounds, rib fracture end misalignment stabbing lung injuries, and lung injuries during diagnostic and therapeutic medical operations, such as acupuncture puncture lung biopsy, artificial pneumothorax, etc. What are the prevention methods of pneumothorax? Removing the cause is the best prevention. According to the current status of pneumothorax treatment, pulmonary alvectomy and pleural adhesions, the former removes the possibility of lung air leakage to the maximum, and the latter ensures that most of the lung tissue does not atrophy when the lung leaks again, so the best prevention lies in proper treatment. Cold weather can stimulate increased inflammation of the respiratory tract and the rupture of multiple alveoli to form alveoli, which can then easily rupture the lung to flush out a hole, causing gas to leak into the chest cavity and form a pneumothorax. Older patients with long-term serious respiratory diseases should pay special attention in winter. Pleural fixation is recommended for patients with recurrent pneumothorax. Treatment of traumatic pneumothorax can generally be carried out according to the treatment principles of spontaneous pneumothorax, but timely diagnosis, active resuscitation, prevention of complications and prevention of recurrence should be emphasized. 1.Bed rest should be provided in a comfortable and quiet environment. 2.Avoid exertion and breath-holding action. 3.Quit smoking. 4.Do not do pulling action and contouring chest exercise for 3 to 6 months after pneumothorax discharge to prevent inducing pneumothorax. 5.Prevent upper respiratory tract infection and avoid violent coughing. 6.Increase nutrition and strengthen physical fitness.