Usually, Personality disorders have their origins in infancy and adolescence; however, detecting BPD before eighteen years has been arguable. Many areas of the world are reluctant to detect BPD in youth because of the following fears: Firstly, Detection of BPD is not legal in teen years. Secondly, common characteristic of BPD; affective on consistency or disturb self-identity, are standard among youngsters. Thirdly, Personality growth is still in progress and this prevents diagnosis. Fourthly, BPD is a disapproving and negative word and clinicians try to protect patients from reprimanding and depressing behavior. The first three assumptions are proven wrong according to re- -search done in past few decades. Lot of evidence are available in support of both detecting and treating BPD in youth. It is found to be effective and consistent in youth as it is in adulthood similar consistency is observed in youth as with adulthood, it has additional rationality over other mental diseases diagnosis. Most importantly, disorder-specific therapy, especially early intervention, is effective. Thus, national treatment guidelines, Section 3 of the new DSM-5, and the proposed International Classification of Diseases, 11th Revision, personality disorder classification have all recently confirmed the legitimacy of the BPD diagnosis in adolescents. This highlights the need to communicate this new knowledge about BPD in adolescence to healthcare professionals.
