Incomplete right bundle branch block is a partial blockage of the conduction of heart impulses to the right ventricle. Incomplete right bundle branch block belongs to a type of arrhythmia, which refers to the partial blockage of the conduction process of the heart impulse to the right ventricle, and is manifested in the electrocardiogram as the QRS wave time is less than 0.12 seconds, and the waveforms of the chest leads V1 and V2 are in the rsR’, rsr’, rSR’, or M type, and the V5 and V6 leads are in the qRs or Rs type. And leads V5 and V6 showed qRs or Rs type. There are also specific changes in the I leads. Patients with incomplete right bundle branch block may have no conscious symptoms, which are detected by electrocardiography, suggesting that the patient may have organic heart disease, such as rheumatic heart disease, coronary artery disease, etc., and need to go to the specialist in time for standardized treatment, and regular review of electrocardiography. If you find discomfort, it is recommended that you consult a doctor as soon as possible to avoid delaying your condition.