Case ReportsNewly Developed Skin Picking After Methylphenidate Treatment in Attention Deficit Hyperactivity Disorder: Possible MechanismsKara, Tayfun MD*; Akaltun, İsmail MD† Author Information *Department of Child and Adolescent Psychiatry, University of Health Sciences, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Istanbul; and †Department of Child and Adolescent Psychiatry, Gaziantep Dr Ersin Arslan Training and Research Hospital, Gaziantep, Turkey. Address correspondence and reprint requests to Tayfun Kara, MD, Department of Child and Adolescent Psychiatry, University of Health Sciences, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Bakirkoy 34147, Istanbul, Turkey; E-mail: [email protected] Conflicts of Interest and Source of Funding: The authors have no conflicts of interest to declare. Clinical Neuropharmacology 41(1):p 28-30, 1/2 2018. | DOI: 10.1097/WNF.0000000000000262 Buy Metrics Abstract Dermatillomania is characterized by excessive and repeated skin picking sufficient to damage cutaneous tissue, but with no underlying dermatological disease. The condition appears as an independent diagnosis in the Obsessive-Compulsive and Related Disorders category in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition. A psychiatric pathology is generally reported to accompany this symptom. Attention deficit hyperactivity disorder (ADHD) is a potentially lifelong condition involving inattentiveness, hyperactivity, and impulsiveness. Attention deficit hyperactivity disorder is one of the most common childhood psychiatric disorders. Treatment includes medication, psychotherapy, and psychosocial therapies. Psychostimulants constitute the basis of treatment of children with ADHD worldwide. We describe a case of skin picking developing after methylphenidate therapy for ADHD. Possible explanations of methylphenidate and skin picking are reviewed in the light of the current literature. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.