The precautions for pneumothorax patients are to actively treat the primary disease. If there are bullae or hypoplastic subpleural alveoli, they can be treated surgically. Avoid various inducements to prevent pneumothorax recurrence. At the same time, pay attention to the combination of work and rest, and take more rest. Avoid strenuous activities within one month after pneumothorax healing. Prevent colds, and avoid severe coughing caused by colds, which may lead to the rupture of alveoli. We should develop good living habits, eat more food containing crude cellulose, keep the stool unobstructed, and avoid the recurrence of pneumothorax caused by forceful defecation. Eat more fresh vegetables and fruits, and quit smoking and drinking at the same time.