Attention deficit hyperactivity disorder
"ADD", "ADHD", and "Hyperactive" redirect here. For other uses, see ADD (disambiguation), ADHD (disambiguation), and Hyperactive (disambiguation). Mental disorder categorized by impulsive behavior, difficulty focusing, or excessive activity Attention deficit hyperactivity disorder Synonyms Attention-deficit disorder, hyperkinetic disorder (ICD-10) Children with ADHD may find it more difficult than others to focus and to complete their schoolwork. Specialty Psychiatry Symptoms Problems paying attention, excessive activity, difficulty controlling behavior [1] [2] Usual onset Before age 6–12 [3] Duration >6 months [3] Causes Unknown [4] Diagnostic method Based on symptoms after other possible causes ruled out [1] Differential diagnosis Normally active young child, conduct disorder, oppositional defiant disorder, learning disorder, bipolar disorder [5] Treatment Counseling, lifestyle changes, medications...