Background: Atopic dermatitis is a chronic, inflammatory, and eczematous skin disease of complex etiology with a variable clinical presentation and severity. It becomes a major health problem in several countries dye to an increase in its prevalence during the past decades. the pathogenesis of atopic dermatitis is complex and appears to result from a mixture of genetic and environmental factors. The Diagnosis is established on certain criteria that deal with patient and family history and clinical manifestations. The objectives of this study were to determine the prevalence of atopic dermatitis in Al-Alam city population, recognize the association between family history of atopic diseases and AD, and Study the association between some demographical factors and the occurrence atopic dermatitis. material and methods :A cross-sectional design study involving 530 school-age population to determine the prevalence of AD. Atopic dermatitis was diagnosed by using Hannifin and Rajka, the UK Working Party, and the American Academy of Dermatology’s Consensus Conference on Pediatric Atopic Dermatitis. results: The study revealed that the prevalence of atopic dermatitis among school age group was 27.92%, and there is strong association between the disease and positive family history to atopic diseases, site of living, and educational level for both patient and family.

Keywords: Epidemio - demographical study ; Atopic Dermatitis ;  school Aged group