Right bundle branch conduction block is divided into complete right bundle branch conduction block and incomplete right bundle branch conduction block according to the degree of block. Complete right bundle branch block means that the right bundle branch that transmits to the right ventricle is faulty and the bioelectrical signal cannot be transmitted directly to the right ventricle, but it does not matter, the electrical signal can be transmitted from the left ventricle, only the contraction of the right ventricle is slightly delayed. Complete right bundle branch block does not necessarily have extensive myocardial damage, and is often not significant if it is not associated with other organic heart disease. If you have no organic heart disease on further medical examination, incomplete right bundle branch block is usually of no pathologic significance. Since there is no pathological significance, i.e., a normal healthy lifestyle will not have an effect on it. 1, Myocardial inflammation of various causes is the most common, such as rheumatic, viral myocarditis and other infections. 2, Vagal excitation, often manifested as transient atrioventricular block. 3, Drugs, such as digitalis and other antiarrhythmic drugs, most of which disappear after discontinuation of the drug, atrioventricular block. 4.Various organic heart diseases such as coronary heart disease, rheumatic heart disease and cardiomyopathy. 5, hyperkalemia, uremia, etc. 6, idiopathic conduction system fibrosis, degenerative changes, etc. 7, trauma, cardiac surgery accidental injury or wave atrioventricular conduction tissue can cause atrioventricular conduction block.