Attention deficit hyperactivity disorder (ADHD) is a common childhood neurological disorder characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity. It is estimated to affect approximately 5% of children worldwide. Children with ADHD may struggle with inattention, hyperactivity, impulsivity, and difficulty completing tasks. If left untreated, ADHD can cause problems with conduct, academics, relationships and substance abuse later in life. While the exact causes are unknown, genetics and biochemical imbalances are thought to play a role. Treatment involves medication, behavioral therapy, environmental modifications and nursing care focused on safety, social skills, routines and family support.