This survey was conducted with the help of the German as well as the Swiss Societies for Obsessive-Compulsive Disorders, and with the support of two other self-help forums. These forums are dedicated to knowledge translation and exchange among patients. A total of 105 patients with a reliable diagnosis of OCD took part in the survey (authenticity of diagnosis was confirmed with multiple criteria, several redundant questions were provided to affirm validity). Patients were asked to fill out the Y-BOCS in its self-report form (M=18.47, SD=6.90). Approximately two thirds of the participants were female (68%), and the mean age was 34 years (SD=11.49; range: 16–61 years). Items were compiled following discussions with experts in the field on common daily problems due to OCD. Cookies prevented ratings from being made more than once by the same person.