What HAS-BLED score is high risk?

HAS-BLED ≥3 indicates high bleeding risk (~3.7%/year). However, high HAS-BLED alone should not stop anticoagulation — modifiable risk factors should be addressed.

What does HAS-BLED stand for?

Hypertension (1), Abnormal renal/liver function (1-2), Stroke history (1), Bleeding tendency (1), Labile INR (1), Elderly >65 (1), Drugs/alcohol (1-2). Max 9.

How do HAS-BLED and CHA₂DS₂-VASc compare?

Both should be used together. Most AF patients have higher stroke risk than bleeding risk, so anticoagulation net benefit remains positive.

HAS-BLED Bleeding Risk Score

Calculate HAS-BLED score (0-9) to estimate 1-year major bleeding risk in anticoagulated AF patients.

Use the full interactive calculator below, or

Related Calculators

CHA₂DS₂-VASc

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HAS-BLED Score