Background: Epidemiologic data derived from population-based studies are very important to understand human diseases and their implications. Highlighting skin problems by identifying their incidence and prevalence is vital to direct suitable medical attention toward them.
Aim: The aim of the study was to detect the prevalence and most common causes of hypopigmentation in primary school children in Zagazig City.
Methods: Cross-sectional study on 185 students selected from two schools. Data were collected by filling a questionnaire, clinical examination, and Wood's light examination to detect hypopigmented skin disorders.
Results: The prevalence of hypopigmentation among studied population was 45.4%; the commonest cause was pityriasis alba 58.3%, followed by pityriasis versicolor 17.9%, postinflammatory hypopigmentation 10.7%, hypopigmented nevus 9.5%, and finally 3.6% vitiligo.
Conclusion: Hypopigmented skin disorders are important and easy to diagnosis skin diseases that need medical attention.
Keywords: epidemiology; hypopigmentation; pityriasis alba; vitiligo.
© 2021 Wiley Periodicals LLC.