Bundle Branch Block is a condition that affects the electrical conduction system of the heart. It occurs when there is a delay or blockage in the electrical signals traveling through the bundle branches, which are pathways that help coordinate the heart's contractions. This can lead to an irregular heartbeat and may be detected through an electrocardiogram (ECG). There are two main types of Bundle Branch Block: right bundle branch block (RBBB) and left bundle branch block (LBBB). Each type affects different sides of the heart and can have various causes, including heart disease, high blood pressure, or congenital heart defects. While some individuals may experience no symptoms, others may require medical evaluation and treatment.