Comprehensive review of borderline personality disorder in East Asian adolescents highlights cultural context and treatment gaps

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Frontiers in Medicine Published May 9, 2026 Medically reviewed May 9, 2026 Study authors: Huijuan Zhang, Yifan Lyu, Ansi Qi, Jing Wen, Lanlan Wang DOI ↗ By Dr. Julia Lee, PhD · Oncology, Genomics & Drug Development

Key Takeaway

Note that high-quality intervention research remains limited for borderline personality disorder in East Asian adolescents.

This comprehensive review focuses on borderline personality disorder within the East Asian adolescent population. The authors do not report a specific sample size or follow-up duration for the primary data synthesis. Instead, they aggregate findings from the broader literature to describe the condition's presentation and management in this specific setting.

The review indicates that the prevalence of borderline personality disorder ranges from 2% to 14%. Significant risk factors include childhood trauma, particularly emotional abuse, as well as ineffective family environments and maladaptive parenting practices. Contributing factors also encompass peer aggression and urban-rural disparities. Core symptoms identified include emotional dysregulation, interpersonal disturbances, and identity issues.

Regarding treatment, the authors note that Dialectical Behavior Therapy and Mentalization-Based Treatment are increasingly implemented, though their adoption varies across East Asia. The review highlights that high-quality intervention research remains limited in this context. Consequently, the authors suggest that future studies should consider the East Asian cultural context, develop early identification methods and intervention strategies, integrate family and school systems, and explore individualized treatment pathways.

Study Details

Study typeSystematic review

EvidenceLevel 1

PublishedMay 2026

View Original Abstract ↓

Borderline personality disorder (BPD) is a severe mental disorder marked by instability in affect, impulse control, interpersonal relationships, and behaviors. Its symptoms typically appear during adolescence and may predict adverse long-term outcomes. In East Asia, research focusing on this population is growing. This review aims to comprehensively summarize these findings to provide an overall profile of adolescents with BPD in East Asia. Studies show the prevalence of BPD among East Asian adolescents ranges from 2% to 14%, depending on the assessment instruments and the study population. Several diagnostic instruments have been developed and validated accordingly. Childhood trauma, especially emotional abuse, constitutes a significant risk factor for BPD. Other contributing factors include ineffective family environments, maladaptive parenting practices, peer aggression, and urban-rural disparities. Emotional dysregulation is a core symptom, along with interpersonal and identity disturbances. Self-injury and suicidal behaviors may show certain different patterns, and BPD features frequently overlap with other psychiatric disorders, especially when comorbid. Dialectical Behavior Therapy (DBT) and Mentalization-Based Treatment (MBT) are increasingly implemented, though their adoption varies across East Asia, and high-quality intervention research remains limited. Future studies should consider the East Asian cultural context, develop early identification methods and intervention strategies, integrate family and school systems, and explore individualized treatment pathways.