Overview

This study is to assess the burden of disease in adolescent and adult participants with moderate or severe alopecia areata (AA), non-segmental vitiligo (NSV), or moderate to severe hidradenitis suppurativa (HS) in a large global real-world participant population.

Eligibility

Inclusion Criteria:

• Participants with Physician-confirmed diagnosis of non-segmental vitiligo (NSV), moderate to severe Alopecia Areata (AA), or moderate to severe hidradenitis suppurativa (HS)
• Participants Ability to understand study questionnaires, with caregiver support as required for adolescents

Exclusion Criteria:

• Participating in interventional clinical trial(s) at time of study visit (participation in another non-interventional study or registry does not exclude a participant from this study)
• Unable or unwilling to comply with study requirements and PRO collection