Personality disorder: a deeply ingrained and maladaptive pattern of behavior of a specified kind, typically manifest by the time one reaches adolescence and causing long-term difficulties in personal relationships or in functioning in society.
Borderline personality disorder is a mental health disorder that impacts the way you think and feel about yourself and others, causing problems functioning in everyday life. It includes a pattern of unstable intense relationships, distorted self-image, extreme emotions and impulsiveness.
Borderline personality disorder (BPD) is a serious mental illness marked by unstable moods, behavior, and relationships. In 1980, the Diagnostic and Statistical Manual for Mental Disorders, Third Edition (DSM-III) listed BPD as a diagnosable illness for the first time.
Experiencing unexpected anger beyond a typical mood swing, your friend might be exhibiting symptoms of borderline personality disorder. Other signs include periods of anxiety or depression that can last up to several hours.
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