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Vitiligo in the Digital Spotlight: Retrospective Longitudinal Study in Germany
Enya Müller1, Christine Gasteiger1, Markus Böhm2
1Department of Dermatology and Allergy, Germany, School of Medicine and Health, Technical University of Munich, Biedersteiner Str.29, Munich, Germany, 49 8941403176.
JMIR Formative Research
|February 24, 2026
Summary
Public interest in vitiligo is high, especially in summer, with many seeking treatment information online. Analyzing web searches reveals unmet patient needs and supports better disease recognition and education.
Area of Science:
- Dermatology
- Public Health
- Digital Epidemiology
Background:
- Vitiligo is a chronic skin condition affecting 1-2% globally, causing depigmented patches.
- Understanding public interest and needs in Germany is crucial for patient-centered vitiligo management.
Purpose of the Study:
- To analyze vitiligo-related web search behavior in Germany as an indicator of public awareness.
- To identify public information needs and regional variations in interest.
Main Methods:
- Retrospective longitudinal study using Google Ads Keyword Planner (Oct 2019 - May 2023).
- Collected monthly search volumes for vitiligo terms in 7 languages.
- Analyzed seasonal, regional, and demographic correlations.
Main Results:
- Over 7.7 million vitiligo-related searches were recorded.
- 74.81% of searches sought general information.
- Search volume peaked in summer, correlating with temperature and sunshine; highest rates in Hamburg, Berlin, Bremen; rural areas showed higher per capita searches.
Conclusions:
- Strong public interest in vitiligo exists, particularly when skin is more exposed.
- High demand for treatment information highlights the need for accessible care.
- Web search data offers real-time insights into public awareness, unmet needs, and supports targeted educational strategies.
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