Pediatric, developmental and mental health problems are more common than renal, cardiac and renal problems.

Compartmental problems were often conceptualised across two broad spectrums: internalising intrapersonal problems like anxiety, depression and withdrawal and externalising problems such as Interpersonal problems such as hyperactivity and aggression.

Mental disorders with long-term consequences can result in children and adolescents, undermining health compliance and reducing societies' ability to be safe and productive. As, children and adolescent have long-term deteriorating effects of mental health problems are often serious.

Early detection and identification of problems are in the best interest of children, adolescents, their families, and the community as a whole. All three are important.

how epidemiology can help our understanding of children and adolescent mental health: the burden of the community, measurement and tracking highly significant.

This study will display the first large-scale study of psychiatric disorders in children and adolescents in the Egypt . to provide services, including prevention and intervention based on evidence of mental health, a population-representative child survey and adolescent mental estimates disorders were needed urgently

Inclusion Criteria:

1. age of children (2-18 years)
2. both males and females.
3. living in Egypt.

Exclusion Criteria:

• unwilling parent to recruited in the study.

This is study will take part in community study( nursery and schools).