Despite increasing recognition of the needs of parents experiencing mental health difficulties, parental self-harm remains an underexplored area within research. This portfolio therefore sought to explore parental self-harm from both lived experience and professional perspectives, bringing together these accounts to develop a broader understanding of its meanings and the context in which it occurs. Part A of this portfolio presents an empirical paper that utilised Interpretative Phenomenological Analysis to explore the experiences of mothers with Emotionally Unstable Personality Disorder (EUPD) who engaged in self-harm. The study provides insight into how participants understood the relationship between self-harm and parenting within the context of EUPD, highlighting the emotional, relational, and moral complexities associated with these experiences. The findings drew attention to the functions of self-harm within parenting contexts, the influence of stigma and fears of institutional consequences on decisions around concealment and disclosure, and the importance of support that recognises the dual context of parenting and mental health. Part B presents a mixed-methods study exploring current practices and perceived support needs among frontline professionals working with parents who self-harm. This paper considers how parental self-harm is understood and responded to currently within family-focused services, drawing attention to the ways in which support is shaped not only by individual professionals, but also by wider organisational and systemic contexts. Professionals described approaches that appeared consistent with family-focused principles, viewing their practice as compassionate, relational, and contextually responsive. At the same time, the study points to the influence of stigma, service structures, and resource constraints on professionals’ capacity to provide support, and identifies a need for greater training. Together, these papers offer complementary perspectives on parental self-harm and contribute to understanding how parents who self-harm may be supported within family and service contexts. Implications for clinical practice, service development, and future research are considered throughout.