The pleural cavity consists of the layers of the pleural wall and the dirty layer, which are airtight potential cavities that do not contain air. When the pleura is broken for any reason and air enters the pleural cavity, it is called pneumothorax (pneumothorax). At this time, the pressure in the pleural cavity increases, and even the negative pressure becomes positive pressure, which compresses the lung and obstructs the venous blood flow back to the heart, producing different degrees of pulmonary and cardiac dysfunction. Patient Zhou, with a left-sided pneumothorax and more than 95% compression of the left lung tissue, was discharged from the hospital after conservative treatment with closed drainage of the left thorax by our department. Thoracic surgery department of Jiading Central Hospital warmly suggests: if there is clear pulmonary herpes or continuous air leakage for more than 3 days after drainage, thoracoscopic pulmonary herpes resection + pleural fixation is feasible, which is minimally invasive and discharged 3 days after surgery with positive results and reduced risk of recurrence. Patient Jiang, left 4th rib fracture, left traumatic pneumothorax (36 weeks of pregnancy)! The left lung tissue was compressed by more than 50% and was once relieved after closed drainage of the left chest cavity was performed. On the 3rd day of admission, the patient’s sternal intra-thoracic segment was prolapsed, the left pneumothorax increased again, and the left lung tissue was compressed by more than 95%, and then the patient was discharged with conservative treatment by resetting the left closed chest drainage tube to drain the exhaust. Jiading Central Hospital Thoracic Surgery Department warmly suggests: if there is clear pulmonary herpes or continuous air leakage for more than 3 days after drainage, thoracoscopic pulmonary herpes resection + pleural fixation is feasible, minimally invasive, and the patient was discharged 3 days after surgery, with positive results and reduced risk of recurrence.