Vitiligo Calculator

The VES (Vitiligo Extent Score) is a measure to express the overall vitiligo involvement of the body (extent).
This calculator (including VES, SAVES and VESplus) is intended for use by physicians in clinical trials and daily practice for the assessment of vitiligo.

VES Calculator VESplus Calculator SA-VES Calculator

International Vitiligo Score Working group

  • Construction and copyright of the VES calculator:
    Nanja van Geel (coordinator), Reinhart Speeckaert. Department of Dermatology, Ghent University Hospital, Gent, Belgium.

  • International group:
    • Nanja van Geel (BE)
    • Reinhart Speeckaert (BE)
    • Marcel Bekkenk (NL)
    • Albert Wolkerstorfer (NL)
    • Cecilia Prinsen (NL)
    • Viktoria Eleftheriadou (UK)
    • Khaled Ezzedine (FR)
    • Alain Taieb (FR)
    • Thierry Passeron (FR)
    • Mauro Picardo (IT)
    • John Harris (US)
    • Amit Pandya (US)
    • Iltefat Hamzavi (US)

  • International framework:
    Vitiligo European Task Force (VETF) and Vitiligo Global Issues Consensus Conferences (VGICC) group

About the VES Calculator

The pictures that reflect the extent of the vitiligo lesions can be selected by this tool. The calculator provides a score that can be expressed in percentage of the body surface area (BSA) involvement or grade of extent per region (Grade 0 tot 6).


van Geel N, Bekkenk M, Lommerts JE, Ezzedine K, Harris J, Hamzavi I, Eleftheriadou V, Picardo M, Taieb A, Prinsen CA, Wolkerstorfer A, Speeckaert R.
The Vitiligo Extent Score (VES) and the VESplus are responsive instruments to assess global and regional treatment response in patients with vitiligo.
J Am Acad Dermatol. 2018 Jan 4. pii: S0190-9622(18)30013-6. doi: 10.1016/j.jaad.2017.12.070. [Epub ahead of print]

van Geel N, Wolkerstorfer A, Lommerts JE, Ezzedine K, Eleftheriadou V, Hamzavi I, Harris J, Picardo M, Taieb A, Prinsen CAC, Bekkenk M, Speeckaert R.
Validation study of the Vitiligo Extent Score-plus.
J Am Acad Dermatol. 2018 May;78(5):1013-1015.

van Geel N, Lommerts J, Bekkenk M, Wolkerstorfer A, Prinsen CA, Eleftheriadou V, Taïeb A, Picardo M, Ezzedine K, Speeckaert R.
Development and Validation of the Vitiligo Extent Score (VES): an International Collaborative Initiative.
J Invest Dermatol. 2016 May;136(5):978-84.

van Geel N, Lommerts JE, Bekkenk MW, Prinsen CA, Eleftheriadou V, Taieb A, Picardo M, Ezzedine K, Wolkerstorfer A, Speeckaert R; international Vitiligo Score Working Group..
Development and validation of a patient-reported outcome measure in vitiligo: The Self Assessment Vitiligo Extent Score (SA-VES).
J Am Acad Dermatol. 2017 Mar;76(3):464-471.