Wells score for deep vein thrombosis (DVT)

The Wells score estimates the clinical probability of deep vein thrombosis from ten criteria.

⚠︎ Learning tool for medical education – not for use in patients or for treatment decisions.

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–points

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Classification (original publication)

ScoreClassification (original publication)
< 2DVT unlikely – category according to Wells 2003
≥ 2DVT likely – category according to Wells 2003

Limitations

The Wells score is not validated in pregnancy and less reliable in inpatients. The criterion "alternative diagnosis" is subjective and strongly influences the result.

FAQ

At what score is DVT likely?▾

From 2 points, DVT is considered likely (two-level model, Wells 2003).

References

  1. Wells PS et al. Evaluation of D-dimer in the diagnosis of suspected deep-vein thrombosis. N Engl J Med 2003;349:1227–35. · PubMed

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InnereFuchs bundles Wells, CHA₂DS₂-VA, HAS-BLED, CRB-65, qSOFA, Child-Pugh, eGFR and more – together with flashcards and exam questions.

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Intended purpose: learning tool for medical education only. Not intended for use in patients or for diagnostic or treatment decisions; not a medical device. Calculations follow the cited original publications; no guarantee of completeness or correctness. Last updated: 09/2026 · Dr. Pascal Bafteh