This article examines the problems facing children who accuse hyperkinetic behaviour. They are the most common abnormalities recorded in children. They affect the intellectual sphere, relational, emotional. Initially, the Class I - A - II the changing of school failure in joining then absenteeism, early school, vagrancy. At the age often evolve preadolescent antisocial behaviour. Such dynamic development of this disorder and a need to develop early detection methods influence the recovery of hyperactive behaviour in an early age.