Narcissism Glossary

distinguishing borderline personality disorder (BPD) from NPD

🌊 Borderline personality disorder (BPD) is a separate diagnosis professionally assessing instability and impulsivity in emotional regulation, self-image, and relationships. Some presentations overlap with NPD, and the two can co-occur — but they are not the same disorder.

A BPD diagnosis, by itself, judges no one abusive or dangerous.

Often seen in situations like these

Fear of abandonment, or big emotional swings, and the 'narcissist' label lands.

When this happens, try this

💡 Rather than guessing diagnoses, examine the repeated words and behavior and their consequences. Where a relationship holds threats, control, or violence, safety comes first — diagnosis regardless.

Type Formal diagnosis · cannot be self-diagnosed · Topic Narcissism-adjacent terms · Also known as Borderline Personality Disorder (BPD)

Official sources & review information

Standard/jurisdiction DSM-5-TR · U.S. NIMH

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