The Lived Experience of Paranoia: Systematic Review of Qualitative Studies

Background and Hypothesis
Paranoia is commonly conceptualised along a continuum ranging from transient suspiciousness and mistrust to fixed persecutory delusions. However, similar paranoid contents may differ in conviction, flexibility, self-reference, distress, functional impact, and embeddedness in broader changes of self, agency, and world-experience. We synthesised qualitative evidence on the subjective experience of paranoia, suspiciousness, mistrust, and persecutory threat.

Study Design
Following PRISMA and ENTREQ guidance, we searched PubMed/MEDLINE, Embase, PsycINFO, Scopus, EBSCOhost, and Ovid from inception to January 31, 2026. Thirty-six qualitative, experiential, or mixed-methods studies were included. Data were analysed using thematic synthesis informed by phenomenological principles. Studies were classified as core evidence when paranoia was central, or contextual evidence when paranoia-related material was embedded within broader phenomena.

Study Results
Three superordinate themes were generated: From interpersonal vigilance to a persecutory world; The threatened self: shame, vulnerability, trauma, and social injury; and Restoring meaning and safety: agency, coping, and altered reality. Paranoia emerged not only as a belief about threat, but as a situated transformation in the relation between self, others, and world. Lower-severity and non-clinical accounts were generally more localised, reflective, and negotiable. Clinical and higher-severity accounts were more pervasive, embodied, self-referential, and reality-defining, often intertwined with voices, external control, altered agency, spiritual meanings, or changes in reality-experience.

Conclusions
Paranoia is a multidimensional lived experience shaped by interpersonal threat, self-vulnerability, trauma, sociocultural context, coping, and meaning-making. Assessment should consider what paranoid beliefs mean, what they do for the person, and how they are shaped by biography, context, and lived experience.