This article seeks to evaluate and take further the discussion put forward by Visser and Jehan ("Emotional and Behavioural Difficulties" 14, no. 2: 127-40). It begins by focusing on the biomedical discourse, its dominance in the academic and professional literature and why the existence of Attention Deficit Hyperactivity Disorder (ADHD) as a medical category is questionable. This is followed by a discussion of other discourses including the sociological discourse and the bio-psychosocial discourse. The importance of multi-professional approaches in the identification, assessment and management of ADHD is highlighted, followed by an examination of what part the educational environment might play with regard to behaviours associated with ADHD. Attention is drawn to the need for continuing research and debate on this evolving concept.