What are Bundle Branch Blocks?

6. Risk Factors

Bundle branch blocks are fairly common. They often occur secondary to other medical conditions including lung disease, heart wall defects, high blood pressure, and coronary artery disease. People who have heart or lung conditions are at risk for developing them, and they are more common in older adults. That said, bundle branch blocks can also occur in people who are otherwise perfectly healthy. There are no risk factors that specifically lead to bundle branch block, only to the underlying diseases that can cause it.