Patients with chest pain when stretching are generally clinically common for the following reasons First, the patient’s chest muscles can be accompanied by a higher accumulation of metabolic waste such as lactic acid after strenuous activity, and it is possible to have significant pain symptoms when performing chest stretching. It is recommended that patients take proper rest, chest muscle massage, massage, and local hot towel wet compresses to improve local blood circulation and promote faster absorption of metabolic waste, which can relieve the painful symptoms in the chest. Second, the formation of spontaneous pneumothorax, some patients stretching due to greater force, if the patient previously combined with pulmonary alveoli, may be caused by a sudden increase in pressure in the chest cavity spontaneous pneumothorax. Patients are often accompanied by pain in the chest, difficulty in breathing, and limitation of activities, and need to improve chest CT examination as soon as possible. If the compression volume of the lung is small, the patient is advised to rest in bed, and the pain in the chest can be completely relieved after the gas in the chest cavity is completely absorbed.