It is not possible to generalize how long a conduction block patient can live. Most patients can survive normally after treatment, while patients with severe conduction block are at risk of cardiac arrest, which is a life-threatening condition. Conduction block is a common arrhythmia. According to the location of the block, it is categorized as atrioventricular block, atrioventricular block, intra-atrial block, and intraventricular block, among which atrioventricular block is the most common type of conduction block. According to the severity of the lesion, conduction block is categorized into first, second and third degree, of which second degree AV block includes type I and type II. The prognosis for first-degree and second-degree type I block is relatively good. With medication and active avoidance of high-risk factors and irritants, patients can survive normally and their life cycle is largely unaffected. Second-degree type II AV block and third-degree AV block, with the risk of cardiac arrest, must be given high priority and be treated aggressively in accordance with medical advice to avoid malignant arrhythmias. If you feel unwell, you should seek medical attention and follow the doctor’s instructions.