translate and validate the vitiligo specific quality of life (VITIQOL) questionnaire to Arabic language.
evaluate the effect of vitiligo on patient quality of life using vitiligo specific quality of life questionnaire (VitiQoL).
measure the impact of vitiligo on work productivity using work productivity and activity impairment questionnaire (WPAI) and general self efficacy scale (GSE) .
analyze how disease severity and location influence patients quality of life and work pro