The main causes of cardiogenic cerebral infarction are embolus dislodgement and hemodynamic factors. 1. Embolus detachment: it is the most common cause of cardiogenic cerebral infarction. Common diseases that lead to cardiac embolus dislodgement include atrial fibrillation and patent foramen ovale. The embolus formed in the heart follows the blood flow to the cerebral vessels, leading to cerebral vascular embolism and cerebral infarction. 2. Hemodynamic factors: the regulation of cerebral blood flow is affected by many factors. The most important one is the change of blood pressure. When the average arterial pressure is lower than 70mmHg and higher than 180mmHg, due to the lesions of blood vessels such as lumen stenosis, the cerebral vascular auto-adjustment function is lost, and the local blood flow supply is impaired. When cardiac insufficiency occurs, the heart’s pumping function decreases and the arterial flow rate decreases, leading to cerebral hypoperfusion and causing cerebral infarction. Patients with cardiogenic cerebral infarction need to seek timely medical treatment and systematic treatment under the guidance of doctors.