HAS-BLED Score Calculator
Assess major bleeding risk in patients with atrial fibrillation on anticoagulation.
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
HAS-BLED Criteria
Select all criteria that apply:
HAS-BLED Score
0/9
Low Risk
Major Bleeding Risk: 0.9%/year
Clinical Recommendation
Low bleeding risk. Anticoagulation generally safe. Standard monitoring.
Score Interpretation
- 0-1: Low risk (0.9-3.4%/year)
- 2: Moderate risk (4.1%/year)
- ≥3: High risk (>5.8%/year)
Modifiable Risk Factors
- - Hypertension - optimize BP control
- - Labile INR - improve TTR or switch to DOAC
- - Drugs - minimize NSAIDs/antiplatelets
- - Alcohol - reduce consumption
Important Note
HAS-BLED ≥3 does not mean anticoagulation is contraindicated. It identifies patients needing closer monitoring and risk factor modification. Always balance against stroke risk (CHA₂DS₂-VASc).
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