Conduct disorder refers to behavioral and emotional problems in children and adolescents where they have difficulty following rules and behaving appropriately. It is often viewed as "bad" behavior rather than a mental illness. Many factors can contribute to conduct disorder, including brain damage, abuse, genetics, school failure, and traumatic life experiences. Children with conduct disorder often engage in aggressive behavior towards others, destroy property, lie, violate rules, and show little remorse for their actions. Early intervention is important to prevent more serious issues later in life.