Incomplete right bundle branch block is a condition in which the QRS wave clusters on the ECG are within the normal range but exhibit right bundle branch block. There are two types of right bundle branch block, one is called complete right bundle branch block and the other is called incomplete right bundle branch block, both of which show right bundle branch block, the difference being that in incomplete right bundle branch block the QRS wave clusters on the electrocardiogram are within the normal range. Incomplete right bundle branch block is a relatively common type of arrhythmia, generally functional changes, such as no obvious symptoms generally do not require special treatment, may be induced by coronary heart disease, respiratory tract infections, anger, prolonged physical labor, excessive sodium intake and other reasons. If there are other symptoms such as palpitations and tachycardia, please go to the hospital for further examination.