Blurring Boundaries: Differentiating Borderline Personality Disorder and Bipolar Disorder to Guide Treatment-A Case Report
Abstract
A case of a 22-year-old female with mood instability, impulsivity, recurrent self-harm, and impaired interpersonal functioning is presented. This case demonstrates the diagnostic challenges and case management due to overlapping features of Borderline Personality Disorder and Bipolar II Disorder. Impulsivity and mood instability are considered gray areas for these two conditions because of their shared symptoms and high comorbidity. The patient completed ten sessions of individual Dialectical Behavior Therapy (DBT) alongside ongoing psychiatric care. The frequency of self-injurious behaviour decreased, and improvements were observed in emotional regulation and interpersonal functioning. This case demonstrates the need for careful differential diagnosis in managing the complex affective and personality presentations.
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