Chest pain requires ECG, breast ultrasound, chest X-ray, blood count, three heart attacks, etc. The purpose of ECG and three heart attacks is to rule out heart attacks and angina pectoris, etc. The purpose of breast ultrasound is to rule out breast diseases, such as breast hyperplasia, mastitis, breast tumor, etc. Chest X-ray is to initially rule out lung lesions, such as pneumonia, pneumothorax, etc. Chest pain should be examined according to the specific symptoms, whether the specific pain area is the precordial area, the area where the breast is located or the area where the chest cavity is located, and also according to the nature of the pain whether it is continuous severe pain or hidden pain, whether there are any symptoms accompanying the pain, whether there are other triggers during the pain attack, such as exertion, violent cough, chest impact injury, etc. If it is considered to be caused by heart disease, it is necessary to focus on the examination of the heart. If the pain is considered to be caused by heart disease, the examination should focus on the lungs.