In awareness of recent developments and upcoming future changes in the conceptualization of obsessive-compulsive disorders (OCDs), a group of 14 experts with specific experience in this area decided that a consensus statement on the present and future of OCD is timely. The group, with their long-term interest and productivity in the area of OCD, met with the specific aim of providing a global perspective.Ten countries from four continents were represented in this 2-day consensus meeting.

The meeting took place in Cape Town on February 27–28, 2006. The participants were asked to prepare and submit a relevant presentation before the meeting in order to enrich the discussion. Six presentations reviewed the following aspects of OCD: diagnosis, epidemiology, neurobiology, treatment, special populations, and pediatric OCD. A draft consensus was prepared, based on the presentations, recent consensus statements, evidence-based guidelines, and the ensuing discussions. On the second day the consensus was subjected to review and comments from all the participants. Further work progressed via E-mail and a subsequent follow-up meeting in Toronto in May 2006. The enclosed supplement represents the outcome of this joint effort.