Causes of Disruptive Behavior Disorder NOS can be both biological and environmental. This means that it can run in the child’s family (perhaps one or both parents displayed the same behaviors as children) or it can be a result of stressful and unhealthy environments that the child is exposed to. Some children have neurological disorders or ADHD that contributes to their behavior disorder.

If a child was exposed to abuse at a young age, abandoned by a parent, not cared for properly (i.e.,being malnourished or the family is in poverty), all of these factors can cause Disruptive Behavior Disorder NOS. So, it’s important to remember that all of these reasons are outside the child’s control, and the child shouldn’t be viewed as naturally bad. All children affected by behavior disorders need and deserve treatment to get better.