Sudden heart pain is mainly considered for the following reasons: 1, coronary heart disease, angina attack, especially in patients who previously had hypertension, diabetes, hyperlipidemia and smoking, sudden heart pain may be a coronary heart disease, angina attack. It is necessary to improve ECG and cardiac ultrasound as soon as possible, and if necessary, improve dynamic ECG for diagnosis; 2. Pulmonary diseases, such as pneumonia, pneumothorax, pulmonary embolism, etc. can also appear similar performance, but patients often have other manifestations of respiratory diseases, such as coughing, coughing sputum or pain related to breathing, etc. Checking chest CT and pulmonary artery CTA can help clarify the diagnosis; 3. Aortic coarctation also It can suddenly appear similar to the manifestation of heart pain, but patients often have tear-like pain in the back and particularly high blood pressure, and examination of aortic CT can help clarify the diagnosis.