If a patient presents with pressure pain in the middle of the upper end of the sternum, it is important to consider whether the patient has a trauma, such as a sternal fracture, rib fracture, peripheral soft tissue contusion due to an external injury, sprain, or contusion, there will be pressure pain in the middle of the upper end. Radiographic examination enables to give a definite diagnosis and after excluding trauma to consider high-risk chest pain, such as acute coronary syndrome, tension pneumothorax, aortic coarctation or pulmonary embolism. These diseases have low morbidity but high mortality rate, and the diagnosis can usually be given by CT examination and ultrasound examination, and after the diagnosis is confirmed, hospitalization is necessary for the next step of systematic treatment. In addition, it is also important to go to the hospital as soon as possible to improve the 18-lead ECG and myocardial enzymology, to exclude coronary artery disease and unstable angina pectoris. In addition to the above-mentioned acute diseases that require prompt treatment, for conditions such as herpes zoster, intercostal neuralgia, and lobular hyperplasia of the breast, the above-mentioned symptoms can also be present, but the above-mentioned diseases can be treated by triage in a specialist.