Hsi Yen

Dr. Hsi Yen is an Assistant Professor of Clinical Dermatology at the University of Southern California, specializing in medical dermatology with focus on severe acne, inflammatory skin conditions, and evidence-based dermatology. He contributes to global dermatology guideline development through the GUIDEMAP project.

His research examines acne pathogenesis in adolescent populations, guideline standardization for urticaria and psoriasis management, and psychodermatology aspects of chronic skin conditions. Recent publications critically appraise international clinical guidelines and evaluate skin cancer prevention strategies.

Dr. Yen advocates for integrated mental health support in pediatric dermatology and develops multidisciplinary approaches for complex dermatological conditions. His clinical work addresses diagnostic challenges in severe dermatological presentations.