There are different types and stages of heart block, and the survival time of patients depends on the severity of the disease and the individual condition, so it is not possible to make generalizations. A healthy heart has a regular rhythm and conduction sequence, and the common conduction blocks that occur after abnormal conduction include atrioventricular block, sinus node block, and intraventricular block. Among them, AV block can be divided into degree I block, degree II type 1 and type 2 block, and degree III block. Patients with type I and type II 1 blocks have no effect on life expectancy, while type II 2 blocks may cause syncope and palpitations. Patients with type III blocks may require a permanent pacemaker, but it does not affect life expectancy too much. If combined with heart failure, heart attack or other comorbidities, it can have an impact on life expectancy. It is recommended to visit the cardiology department of the hospital in time for discomfort and take active treatment to effectively prolong survival.