ABSTRACT
Background: Self-help groups can have a large impact on individuals well-being and could reduce costs for healthcare services. Previous research supports the effectiveness of self-help groups, but explanations for this are lacking. Identifying the active ingredients which encourage positive change could inform effectiveness of these groups producing the best outcomes for members.Aim: This research investigated how members and facilitators of a borderline personality disorder self-help group (BPD SHG)interacted and made sense of their experiences in group meetings, to determine what aspects of interaction were helpful.Method: Naturalistic data was collected from 10 participants via audio recording and analysed using interpretative phenomenological analysis.Results: Three emergent themes are discussed: humour, praise and experiential knowledge.Conclusion: These are suggested to be active ingredients which are critical for the effectiveness of this BPD SHG, with particular focus on the facilitator's contribution.