Background: Externalizing behavior at early childhood and its effects on development are recognized as a public health issue that compromises child's social, emotional, and learning abilities as well as those of their families, friends, other adults, and even the environment. There are many familial, contextual, and child-related risk factors due to externalizing behavior among children. One such risk factor is a positive link between early externalizing behavior and high levels of negative parenting, which is most likely to manifest persistent problems when children start to enter school. Various therapies are frequently employed to control externalizing behavior. These interventions are typically available to all parents in the general population as a preventive strategy and support the effectiveness of parenting programs in margining children who already demonstrate externalizing behavior. Nurses have a unique chance to collaborate with parents, teachers, and school psychologists for the aim of early identification, prevention, and intervention of externalizing behavior problems at an early childhood, which saves more significant and expensive issues in later life. This article review describes Parents' reactions and their reflection on externalizing behavior of their children.