Hi Kathy. I am a board certified and licensed mental health counselor at a psychiatric hospital full of actual borderline personalities and actual narcissistic personalities. I’m not some disgruntled ex with an axe to grind, writing about a break up.

Yes, on paper, the two disorders are different. Diagnostically, they are different. In terms of presentation, they are nearly indistinguishable. This is common knowledge in the field. It’s also why they appear in the same cluster in the DSM5, along with histrionic and anti-social. Clusters exist due to overlap of symptoms and similarity of presentation. Those are not my opinions. Those are facts. So, I stand by everything I have said. And I learned all this not from reading blogs, but from training and professional experience, and also from working with a team of 15 different psychiatrists, all of whom will tell you the same thing. If you disagree with something, that’s fine. But to label it as misinformation is incorrect. But thank you for your comments.