HAS-BLED Score
One point each if present: uncontrolled hypertension, renal dysfunction, liver dysfunction, stroke history, bleeding predisposition, labile INR, age >65, alcohol excess, antiplatelet/NSAID/bleeding-prone medication use (teaching simplification).
Calculator
How it works
HAS-BLED summarizes bleeding risk factors for patients considered for anticoagulation. This page uses a simplified 9-item checklist for teaching rather than every nuance of original definitions.
Limits
INR lability and renal/liver definitions vary; this is not identical to every published HAS-BLED operationalization.
Educational tool only—not for diagnosis or treatment decisions.