Bleeding Risk in Atrial Fibrillation: HAS-BLED Score

Understand the risk of bleeding from anticoagulation in atrial fibrillation


The HAS-BLED score was derived from a real-world cohort of 3978 with AF and assesses the 1-year risk for major bleeding (intracranial, hospitalization, hemoglobin decrease >2 g/L, and/or transfusion) associated with oral anticoagulation. Patients with a high risk of bleeding (HAS-BLED score ≥ 3) should undergo regular clinical review following the initiation of oral anticoagulation.


The Bleeding Risk in Atrial Fibrillation: HAS-BLED Score calculator is created by QxMD.

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1. Hypertension (sBP > 160 mm Hg)?

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