A pneumothorax that compresses about 10% and is not worsening does not require hospitalization. If the pneumothorax is aggravated, hospitalization is required as soon as possible for observation and treatment. If the pneumothorax compresses about 10%, it is not particularly serious, but must rest in bed and apply antibiotic drugs under professional doctor’s guidance for anti-infection treatment, such as azithromycin, ceftriaxone, etc., which does not need hospitalization, and the pneumothorax will be gradually absorbed. If the pneumothorax shows an aggravating trend, such as obvious chest pain, dyspnea, etc., you need to go to the hospital as soon as possible for observation and treatment. If the pneumothorax compresses by 10%, hospitalization is usually not necessary. It is recommended to have regular review, such as chest CT or chest X-ray, to keep an eye on the development of the disease. Once the condition is found to have a tendency to progress, it is necessary to go to a regular hospital as soon as possible.