Parents may often wonder what truly constitutes problematic behaviors or behavioral issues beyond normal childhood growing pains. Some behavior problems point to a more serious issue that may require the help of a professional.  In order to better understand a child's behavior, it's helpful to understand common issues that children with behavioral disorders experience. Although there's a wide range of possible explanations, the most common disruptive behavior disorders include Attention Deficit Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD). Often, these disorders showcase overlapping symptoms, and excessive refusal to obey authority figures is often apparent within cases of CD and ODD. Although there's a wide range of possible explanations, the most common disruptive behavior disorders include Attention Deficit Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD). Often, these disorders showcase overlapping symptoms, and excessive refusal to obey authority figures is often apparent within cases of CD and ODD. It is important to rule out acute stressors that might be disrupting the child’s behaviour. For example, a sick parent or victimising by other children might be responsible for sudden changes in a child’s typical behavior and these factors have to be considered initially.