If patients have symptoms of chest pain when inhaling forcefully: 1, consider whether it is caused by trauma, for example, patients with fractures of the sternum or ribs, contusions, sprains and stretching injuries of the surrounding soft tissues will have clinical symptoms and reactions of pain in the precordial region when inhaling forcefully. 2, if you feel chest pain when inhaling forcefully, also consider high-risk chest pain, for example, aortic coarctation, pulmonary embolism, tension pneumothorax, acute coronary syndrome, these diseases will also have chest pain when inhaling forcefully. 3, for respiratory system diseases, various types of chest pain due to various causes, especially in the presence of various pneumothorax, often in traffic pneumothorax, spontaneous pneumothorax will be significantly aggravated with inspiration and chest pain. In addition, if the patient has a large area of pleurisy, lung infection, acute bronchitis, there will also be this performance.