What does the HAS-BLED score mean?

HAS-BLED estimates the 1-year risk of major bleeding in patients with atrial fibrillation. Each letter represents a risk factor: Hypertension, Abnormal renal/liver function, Stroke, Bleeding history, Labile INR, Elderly (>65), Drugs/Alcohol. Scores range from 0 to 9.

What is a high HAS-BLED score?

A score ≥ 3 indicates high risk of major bleeding. However, a high score does not mean anticoagulation should be stopped — it means modifiable risk factors should be addressed and the patient should be monitored more closely.

Should I stop anticoagulation if HAS-BLED is high?

No. A high HAS-BLED score is not a contraindication to anticoagulation. Studies show that patients with high CHA₂DS₂-VASc AND high HAS-BLED scores still benefit from anticoagulation. Focus on correcting modifiable risk factors (blood pressure control, limiting alcohol, stopping unnecessary NSAIDs).

How often should bleeding risk be reassessed?

Bleeding risk should be reassessed periodically, typically at each clinic visit or at least annually. Risk factors can change over time, and ongoing reassessment helps optimize the balance between stroke prevention and bleeding risk.

Online Medical Tools — HAS-BLED Score

Printed on 2/13/2026

For informational purposes only. This is not medical advice.

HAS-BLED Score

The HAS-BLED score estimates the risk of major bleeding in patients with atrial fibrillation who are on or being considered for anticoagulation therapy. It is meant to be used alongside the CHA₂DS₂-VASc score to weigh stroke prevention benefits against bleeding risk. A high HAS-BLED score does not contraindicate anticoagulation but highlights the need for careful monitoring.

Compare with CHA₂DS₂-VASc Score

Formula: Score = H(1) + A(1+1) + S(1) + B(1) + L(1) + E(1) + D(1+1)

Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.