Algorithmic Affliction: Self-Harm Aesthetics and Suicidal Symbolism on TikTok

Background Adolescents encounter self-harm and suicide depictions on short-form video platforms during sensitive periods of identity formation. On TikTok, highly stylized presentations can render suffering legible, relatable, and socially valued, shaping how pain is understood, remembered, and performed.Objective To synthesize how peer-reviewed literature characterizes aestheticized self-harm and suicide on TikTok and to describe interpretive pathways through which these depictions may become symbolically available to adolescents.Method A qualitative narrative synthesis was conducted on 26 peer-reviewed studies published from 2018 to 2025, identified through database searching in psychology and biomedicine and forward citation searching. Reported findings were analyzed inductively and then refined through a theory-sensitized thematic approach within a constructivist, symbolic narrative suicidology frame. The synthesis does not advance causal claims or estimate prevalence.Results Across studies, TikTok portrayals repeatedly involved five interlocking processes. First, aestheticization of pain packaged distress as affect-forward, stylized micro-narratives that travel easily. Second, narrative collapse configured closed-future arcs that present despair as inevitable, sometimes crystallizing suicidal scripts. Third, emotional contagion and identification amplified affect through mirroring, parasocial intimacy, and affiliation with pain-defined publics. Fourth, habituation, normalization, and accommodation shifted responses from alarm toward familiarity, with distress incorporated at the level of everyday schemas. Fifth, romanticization and social reward conferred visibility and engagement that reinforced curated vulnerability and the symbolic durability of pain. Together, these processes describe a recursive ecology in which algorithmically sequenced, affect-congruent material can make stylized suffering emotionally salient, narratively coherent, and socially valuable, enabling suicidal meanings to be integrated into self-understanding.Conclusion The literature maps platform conditions and interpretive pathways that shape which stories about pain are easiest to find, feel, perform, and remember. Implications include narrative-informed prevention, transparency about recommendation systems, and empirical testing of strategies that elevate recovery-oriented, Papageno-consistent content and visible help-seeking scripts.