Borderline personality disorder (BPD) is a serious mental disorder marked by a pattern of ongoing instability in moods, behavior, self-image, and functioning. These experiences often result in impulsive actions and unstable relationships. A person with BPD may experience intense episodes of anger, depression, and anxiety that may last from only a few hours to days.
Some people with BPD also have high rates of co-occurring mental disorders, such as mood disorders, anxiety disorders, and eating disorders, along with substance abuse, self-harm, suicidal thinking and behaviors, and suicide.
While mental health experts now generally agree that the label “borderline personality disorder” is very misleading, a more accurate term does not exist yet.