Right bundle branch conduction block is divided into complete right bundle branch conduction block and incomplete right bundle branch conduction block, the specific hazards are as follows: 1, simple right bundle branch conduction block does not cause hemodynamic changes, there is no obvious harm to the body itself, so patients do not need to worry; 2, if the right bundle branch conduction block, combined with the left anterior branch block, left posterior branch block or three branch block In the case of right bundle branch conduction block, complete atrioventricular block is likely to occur, which may result in decreased physical endurance, dizziness, syncope, panic, and in severe cases, A-Syndrome or even sudden death, which may require permanent pacemaker protection.