We know that normally there is no air in the pleural cavity, only a small amount of fluid or lubricant exists. However, in certain people, such as those who often smoke, tall and thin young people, and patients with chronic bronchitis, the alveoli in their lungs tend to be more fragile and can easily rupture. People experiencing a pneumothorax for the first time might feel this during certain situations like after a cold, coughing, sneezing, or playing sports, which can lead to a recurrence of the pneumothorax. Early symptoms of a recurrence, due to only a small amount of air compression, might not be very uncomfortable, just a slight sense of difficulty breathing. As the pneumothorax increases, symptoms like chest pain and difficulty breathing can develop. Therefore, the symptoms of a recurring pneumothorax are not identical each time, but there is a pattern; the severity can range from mild breathing difficulty to severe respiratory distress and chest pain.