Objective: To study whether there is an association between adulthood trauma and voice hearing (VH) and to explore if there are similarities and differences between VH in clinical and non-clinical populations.Introduction: Previously, VH has been viewed as a normative experience but evolved to be a sign of mental illness; namely schizophrenia (SCZ). In recent years, the focus has shifted from solely biological and pathological viewpoints of VH to more psychosocial perspectives.Methods: Scoping review conducted with a systematic search on PsycINFO, PubMed, Scopus, and CINAHL resulting in 48 studies.Results: The majority of studies found a link between adulthood trauma and VH. The content of VH was in some cases found to be linked to traumatic events. VH appeared phenomenologically similar in SCZ, Borderline Personality Disorder, Bipolar Disorder, Depression, Eating Disorder, Dissociative Identity Disorder, Post-Traumatic Stress Disorder, and Non-Clinical Voice Hearers (NCVH). Primary differences were found to be higher severity and age of onset in SCZ. NCVH experienced less distress than clinical groups. Voices could change due to external factors or appraisal of the voices and be experienced as both positive and negative. There were found possible links between dissociation, anxiety, and VH.Conclusion: Trauma appears correlated with VH. VH might be a coping mechanism to handle overwhelming situations. It appears phenomenologically similar in both clinical groups and NCVH and is not exclusive to SCZ. VH seems to be able to change over time.