The most characteristic manifestations of cardiogenic syncope are different in different periods. Dizziness in the precursor period, loss of consciousness in the syncope period, and weakness in the recovery period. 1. Prodromal period: the most characteristic performance is that the patient feels dizzy and feels unsteady when standing upright. Occasionally, there is transient darkening of the visual field and hearing loss. 2. Convulsive phase: the most characteristic manifestation is the loss of consciousness, pallor, and sudden fall to the ground, which can be returned to normal within a few seconds or minutes. 3. Recovery period: the most characteristic performance is weakness, the patient gradually awake, still pale, sweating, weakness. If the loss of consciousness is too long, there will be brain damage caused by hypoxia, incontinence and other sequelae. If cardiogenic syncope occurs, it is necessary to follow the doctor’s instructions to take medication, quit smoking, limit alcohol, eat a light diet, and actively treat the original disease.