For middle-aged men, if symptoms of dizziness occur, first, consider cerebrovascular accidents, such as acute cerebral insufficiency, transient ischemic attack, acute stroke, cerebral infarction, cerebral embolism, or cerebral hemorrhage can lead to sudden dizziness. Second, if the patient has a family history of diabetes mellitus or a past history of diabetes mellitus, consider dizziness due to diabetes mellitus that leads to hypoglycemic reaction or diabetic ketoacidosis, hypertonic coma, etc. Third, for some patients with hypertension, for example, sudden transient increase in blood pressure may also have symptoms of dizziness. Fourth, for some cardiogenic diseases, such as coronary artery disease, unstable angina or myocarditis, congenital heart disease, these conditions can also trigger dizziness. Fifth, in some cases of plant nerve dysfunction, there will also be the above clinical manifestations.