🩹 Cardiovascular
Will an anticoagulant cause bleeding? HAS-BLED estimates bleeding risk
HAS-BLED is a common score for major-bleeding risk on AF anticoagulation, using uncontrolled hypertension, liver/kidney function, stroke history, bleeding history, INR stability, age, concurrent drugs and alcohol — total 0-9; ≥3 suggests higher bleeding risk. Its key use is to prompt correcting modifiable factors and closer monitoring — not to stop anticoagulation because the score is high. Whether to anticoagulate is a doctor's decision weighing stroke risk (CHA₂DS₂-VASc) against bleeding. Free; scored locally for talking with your doctor.
無料で開始する →Free · auto-scored · for discussion with your doctor only
For AF patients on or about to start anticoagulation, to estimate bleeding risk and inform discussion with your doctor
よくある質問
HAS-BLED高得点は抗凝固中止を意味しますか？
No — this is the most common misconception. A high score prompts closer monitoring and correcting modifiable factors (blood pressure, alcohol, avoiding unnecessary painkillers), not stopping. Usually stroke-prevention benefit still outweighs bleeding risk; the decision is a doctor's.
CHA₂DS₂-VAScとの関係は？
CHA₂DS₂-VASc estimates stroke risk (whether to anticoagulate); HAS-BLED estimates bleeding risk (how careful to be). Doctors usually look at both together. Both are on this site; use them together.
抗凝固をしていなくても実施できますか？
Yes, to understand your bleeding-risk background. But it is mainly used in AF patients considering or on anticoagulation; have a doctor interpret the result.