The causes of heartburn and fever may include: First, it may be due to organic heart disease, especially tachyarrhythmia, which may cause clinical manifestations of heartburn. The fever and panic may also be due to malignant neoplastic diseases, such as lung cancer, stomach cancer, cervical cancer and other malignant tumors, because malignant neoplastic diseases will appear in the blood routine of the three systems to reduce the immunity, there may be fever, and there will be a decrease in hemoglobin, there are symptoms of panic and palpitations. Third, the appearance of panic and fever may also be infectious diseases, such as lung infection.