If a patient has chest fever accompanied by pain, the specific causes are as follows: First, it is important to consider the factors of high-risk chest pain, such as a patient with acute coronary syndrome, tension pneumothorax, pulmonary embolism, or aortic coarctation, all of which can present with chest fever accompanied by pain, but the severity of the pain and the accompanying symptoms of pain vary. Second, patients with cardiogenic diseases, such as coronary artery disease, myocarditis, pericarditis, hypertrophic obstructive heart disease, infective endocarditis, and heart valve disease, also present with varying degrees of chest fever accompanied by pain. Then, patients will also have such clinical symptoms and manifestations in the case of lung infections, such as massive pneumonia or when patients develop pleurisy. Finally, for diseases of the digestive system, such as bile reflux gastritis or acute esophagitis, clinical manifestations of chest fever with pain can also occur.