About Atrial Fibrillation (AFib)

Learning all you can about your condition is an important step in your journey. It may help you make sense of what’s happening in your body, guide your approach to treatment, and inform the health decisions you make next. Start with some of the content below.

The letters A, F, I, and B; the abbreviation for atrial fibrillation (AFIB)

What Is AFib?

Understand what AFib is, why it occurs, and what it means for your health.

Icon of a brain

AFib & Stroke

Learn how AFib causes a stroke and calculate your stroke risk.

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Blood Thinners for AFib

Evaluate different types of blood thinners, including XARELTO®.

Stroke Risk Calculator

Discover your CHA2DS2-VASc score for stroke risk.