The treatment of pneumothorax aims to promote the reexpansion of the affected lung and reduce recurrence, while considering the possibility of eliminating the cause of the disease. Treatment measures include non-surgical and surgical treatments. Non-surgical measures include observation, thoracic puncture for air evacuation, closed thoracic drainage, and pleural fixation. Surgical treatments include thoracoscopic surgery and open chest surgery. Choices should be made based on the type and frequency of occurrence of the pneumothorax, the degree of compression, the state of the condition, and the presence of complications, etc. Most patients can be cured through non-surgical treatment, while only a minority, approximately 10%-20% of patients, require surgical treatment.