HAS-BLED Bleeding Risk Score

Assess 1-year major bleeding risk in anticoagulated atrial fibrillation patients. Clinical decision support for safe anticoagulation.

HAS-BLED = Hypertension · Abnormal renal/liver function · Stroke · Bleeding history/predisposition · Labile INRs · Elderly (>65) · Drugs/alcohol

Risk Factors (click to select, 1 point each)

H Hypertension (systolic >160 mmHg) A Abnormal renal (dialysis/transplant/Cr>200μmol/L) or liver function (cirrhosis/bilirubin>2×normal+ALT>3×normal) S Stroke history B Bleeding history or predisposition (e.g., anemia) L Labile INRs (TTR <60%) E Elderly (age >65) D Drugs (antiplatelet/NSAIDs) or alcohol excess

⚠️ Medical Disclaimer: This tool is for reference and educational purposes only. Score ≥3 indicates high bleeding risk — regular review and correction of modifiable factors recommended. Use with clinical judgment.

HAS-BLED Bleeding Risk Score

Risk Factors (click to select, 1 point each)

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