What causes atrial fibrillation to start?

What causes atrial fibrillation to start?

Changes or damage to your heart’s tissue and electrical system cause atrial fibrillation. Usually, coronary artery disease or high blood pressure causes those changes. Often a trigger heartbeat causes atrial fibrillation to begin. But sometimes it’s hard to know the cause of that triggered heartbeat. For some people, there is no identifiable cause. Research is constantly providing new information to help us learn more about the

Afib often runs in families. So, if a close family member has Afib, you have a “family history” and therefore a higher chance of developing it, too.