Chest pain should be referred to thoracic surgery or cardiology. If there is chest pain characterized by pins and needles, consider intercostal neuralgia. If the pain is characterized by persistent pain that worsens when breathing, consider it to be pain that occurs after pleurisy or lung tumor invades the chest wall. If the pain is paroxysmal, with each episode lasting 3-5 minutes and a feeling of chest tightness, coronary artery disease or angina pectoris is considered, and an electrocardiogram should be performed. If the ECG indicates that there is ST-segment depression, it should be considered as coronary artery disease and angina pectoris, and coronary angiography should be improved to give regular treatment for coronary artery disease. If it is a lung tumor, a chest CT examination should be improved and evaluated by thoracic surgery to see if it is suitable for surgical treatment.