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Wells Score (DVT) (Wells)

Wells Score (DVT): calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

Wells Score (DVT)

Active cancer (treatment ≤6 months or palliative) (1 = yes)
Paralysis, paresis or recent leg cast (1 = yes)
Bedridden ≥3 days or major surgery ≤12 weeks (1 = yes)
Tenderness along the deep veins (1 = yes)
Entire leg swollen (1 = yes)
Calf swelling ≥3 cm vs other leg (1 = yes)
Pitting edema in the symptomatic leg only (1 = yes)
Collateral superficial (non-varicose) veins (1 = yes)
Previous DVT (1 = yes)
Alternative diagnosis at least as likely (1 = yes, −2)
Wells (DVT)
3points
The score does not replace a doctor's examinationWells Score (DVT): calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Clinical probability
High (≈53%)
Two-level model
DVT likely — venous ultrasound

More about: Wells Score (DVT) (Wells)

What it calculates

The “Wells Score (DVT) (Wells)” calculator computes Wells (DVT) in points from 10 parameters: active cancer (treatment ≤6 months or palliative) (1 = yes), paralysis, paresis or recent leg cast (1 = yes), bedridden ≥3 days or major surgery ≤12 weeks (1 = yes), localized tenderness along deep veins (1 = yes), entire leg swollen (1 = yes), calf swelling ≥3 cm vs other leg (1 = yes), pitting edema in the symptomatic leg only (1 = yes), collateral superficial (non-varicose) veins (1 = yes), previous dvt (1 = yes), alternative diagnosis at least as likely (1 = yes, −2).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters Active cancer (treatment ≤6 months or palliative) (1 = yes) = 1, Paralysis, paresis or recent leg cast (1 = yes) = 0, Bedridden ≥3 days or major surgery ≤12 weeks (1 = yes) = 0, Localized tenderness along deep veins (1 = yes) = 0, Entire leg swollen (1 = yes) = 1, Calf swelling ≥3 cm vs other leg (1 = yes) = 1, Pitting edema in the symptomatic leg only (1 = yes) = 0, Collateral superficial (non-varicose) veins (1 = yes) = 0, Previous DVT (1 = yes) = 0, Alternative diagnosis at least as likely (1 = yes, −2) = 0 the result is 3 points (The score does not replace a doctor's examination).

How to use

  1. Enter active cancer (treatment ≤6 months or palliative) (1 = yes), paralysis, paresis or recent leg cast (1 = yes), bedridden ≥3 days or major surgery ≤12 weeks (1 = yes), localized tenderness along deep veins (1 = yes), entire leg swollen (1 = yes), calf swelling ≥3 cm vs other leg (1 = yes), pitting edema in the symptomatic leg only (1 = yes), collateral superficial (non-varicose) veins (1 = yes), previous dvt (1 = yes) and alternative diagnosis at least as likely (1 = yes, −2) — each field above is adjustable with a slider.
  2. Wells (DVT) (points) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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