After suffering from pneumothorax, patients often experience symptoms such as chest pain, chest tightness, and coughing. Can patients smoke after suffering from pneumothorax? It is advised against smoking after suffering from pneumothorax, as smoke and harmful substances directly irritate the respiratory tract, worsening the patient's symptoms. Additionally, smoking produces a large amount of carbon monoxide, which, when absorbed by the body, can cause hypoxia, thereby exacerbating symptoms of breathing difficulty. Therefore, patients with pneumothorax should not smoke, and it is also recommended to quit smoking even after recovery from pneumothorax, as smoking is harmful in many ways and particularly damaging to the respiratory system.