Amidst rising concerns about mental health in adolescents, the role of social media (SM), particularly highly visual platforms such as TikTok, has become a growing focus of investigation. In the extant literature, conclusive evidence is limited by the aggregate analysis of very heterogeneous SM platforms. This systematic scoping review examines the relationship between TikTok and mental health in adolescents. Additionally, it aims to highlight potential interactions between typical developmental processes and the unique aspects of TikTok, exploring their relevance to mental health within this demographic. Following PRISMA guidelines, a systematic search across PubMed, Scopus, Web of Knowledge, and PsychINFO yielded 20 studies that met the inclusion criteria, encompassing a total of 17,336 subjects from 10 countries. The retrieved studies analyzed four main topics related to TikTok use, i.e., the overall impact on adolescents’ mental health, risk of problematic use and behavioral addiction, consequences on body image and self-esteem, and possible spreading of mental illness behaviors. While TikTok offers creative opportunities for self-expression and peer connection, the literature raises concerns about its potential negative effects on teens, such as lower life satisfaction, increased risk of “contagion” of certain psychiatric symptoms, and problematic usage patterns. Significant variations in study methodologies and outcome measures were observed. In the current era of evolving SM landscapes, a comprehensive approach informed by developmentally grounded research is critically needed to further understand the interplay between SM and adolescent mental health, providing insights for health authorities and policymakers.

Introduction: The relationship between maladaptive perfectionism and Internalizing (ID) and Externalizing Disorders (ED) in children needs to be better understood, along with the intergenerational transmission of these traits from parents to children. The present work aimed to share light on both these issues. Method: 39 children with ID, 19 with ED, and their parents were recruited*. The Multidimensional Perfectionism Scale, the Big Five Inventory, the Child and Adolescent Perfectionism Scale, and the Hierarchical Personality Inventory for Children were used. The association between parent personality and perfectionism traits and children’s perfectionism dimensions was evaluated through hierarchical regression analysis. Results: ID and ED groups did not differ significantly concerning perfectionism. Fathers presented higher scores than mothers in Self-Oriented Perfectionism, Other-Oriented Perfectionism, and Socially-Prescribed Perfectionism. Parents of children with ID report higher levels of Obedience in their children, while parents of children with ED reported higher levels of Creativity and Perseverance. Significant associations were found between perfectionism in parents and their children, as well as between perfectionism and the personality of children. Conclusion: Results suggest a transdiagnostic nature of Perfectionism and support the transgenerational transmission of the personality traits investigated.

Background: Problematic social media use (PSMU) has been increasingly conceptualized as a form of behavioral addiction, characterized by loss of control and continued engagement despite negative consequences. Adolescents with psychiatric disorders may represent a particularly vulnerable group, yet clinical evidence remains limited. This study examined the prevalence of PSMU in help-seeking adolescents and investigated how psychological vulnerabilities influence social media (SM) engagement, platform selection, and content preferences. Methods: A cross-sectional study was conducted on 265 adolescents (12–18 years) undergoing psychiatric evaluation. Participants completed validated measures of PSMU (Social Media Disorder Scale-9) and perceived stress, along with items assessing screen time, platform usage, engagement style (active vs. passive), and content preferences. Diagnostic data were retrieved from clinical assessments. Results: PSMU prevalence was 14.4%, rising to 19.2% among adolescents with internalizing disorders. Female and gender-diverse adolescents showed significantly higher PSMU scores. PSMU was associated with greater screen time (OR = 2.41) and nearly threefold higher odds of intensive TikTok use. Overall, SM engagement was predominantly passive, particularly among adolescents with depressive disorders, while those with neurodevelopmental disorders more frequently engaged actively. Higher stress levels were linked to greater SM use, especially on TikTok and Instagram. Conclusions: PSMU appeared to be relatively prevalent among adolescents receiving psychiatric care, particularly those with mood and anxiety disorders and high stress levels. Findings highlight the importance of assessing PSMU in these groups of adolescents and analyzing qualitative patterns of SM engagement to identify at-risk youth and inform targeted clinical interventions.