Abstract: Determines what mental health (MH) nurses understand the concept of self-management to mean in relation to patients with a diagnosis of Borderline Personality Disorder (BPD). Interviews 10 MH nurses using a semi-structured format and analyses data using the general inductive approach, resulting in 26 sub-themes organised into three over-arching themes: self management is self-responsibility, self-management is self-awareness, self-management is maintaining safety.