A woman says her in-laws have "armchair diagnosed" her with a borderline personality disorder — even going so far as to begin attending a support group to "learn how to deal" with it.

WebMd explains borderline personality disorder (BPD), its types, signs, causes, diagnosis and treatment options. Learn how to manage BPD symptoms.

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According to the American Psychiatric Association, a pattern of unstable interpersonal relationships is one of the core diagnostic criteria for borderline personality disorder (BPD).

Purpose matters, but it’s not a cure-all. “Finding purpose” is not the key to solving today’s mental health crisis. Here’s ...