I believe that many people are still unfamiliar with pneumothorax, but it is a real presence in our lives, and it doesn’t stop happening just because we don’t know enough about it. So what is pneumothorax? What kind of people are prone to pneumothorax? Let’s learn more about it today. In simple terms, pneumothorax is a condition in which gas enters the pleural cavity and causes pneumatization. The symptoms are sudden chest pain, chest tightness, coughing, shortness of breath, etc. If the patient also suffers from asthma and other diseases, there will be difficulty in breathing, sweating symptoms. Although the symptoms of pneumothorax are rapid, it can be cured if treated timely. The treatment of pneumothorax includes general treatment, exhaustion therapy, measures to prevent recurrence, surgical treatment and prevention of the original disease and complications. Pneumothorax generally tends to occur in lean and tall people, and the incidence is six times higher in men than in women. The reason for this is that during growth and development, the thorax develops faster than the lungs and the lungs are always in a certain degree of expansion. The elastic retraction force generated by the expanded lung, however, tends to shrink the lung and restore its natural volume. With the inward elastic retraction force of the lungs and the outward elastic repositioning force of the thorax, the pressure in the pleural cavity is lower than the atmospheric pressure and a negative pressure is formed. In contrast, boys with a lean and tall body type are mostly flat chested, which is more likely to develop into pneumothorax due to congenital elastic fiber dysplasia that leads to decreased elasticity of alveolar wall and easy formation of alveoli after expansion, which will develop into pneumothorax when encountering external force and other triggering factors. The triggering factors that cause pneumothorax are usually related to exertion, lifting heavy objects, strenuous exercise, violent coughing, sneezing, loud laughter, and forceful defecation. Therefore, thin and tall men should pay attention to strengthening nutrition, enhancing physical fitness, avoiding strenuous exercise as much as possible, keeping bowel movements smooth, avoiding breath-holding and forceful defecation, and must be dealt with immediately once an attack occurs.