HAS-BLED score

It’s used to assess the risk of bleeding in patients undergoing anticoagulation therapy.
 

Component

Description

Score

Hypertension

Uncontrolled blood pressure
(SBP >160 mmHg)

1

Abnormal liver
/ renal function

• Cirrhosis or bilirubin >2x normal
with AST/ALT/AP >3x normal

• Creatinine >200 µmol/L
(>2.26 mg/dL)

1 

1 

Stroke

History of stroke

1

Bleeding history

History of major bleeding

1

Labile INR

INR >3.5 (if on anticoagulation
eg. Warfarin)

1

Elderly age

Age >65 years

1

Drugs / Alcohol

• Use of anti platelet drugs that
increase bleeding risk

• Excessive alcohol intake

1 

1 

Maximum

 

9

 

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