Borderline personality disorder is a condition in which people have long-term patterns of unstable or turbulent emotions, such as feelings about themselves and others.
These inner experiences often cause them to take impulsive actions and have chaotic relationships.
Personality disorder - borderline
Causes, incidence, and risk factors
The causes of borderline personality disorder (BPD) are unknown. Genetic, family, and social factors are thought to play roles.
Risk factors for BPD include:
Abandonment in childhood or adolescence
Disrupted family life
Poor communication in the family
This personality disorder tends to occur more often in women and among hospitalized psychiatric patients.
People with BPD are often uncertain about their identity. As a result, their interests and values may change rapidly.
People with BPD also tend to see things in terms of extremes, such as either all good or all bad. Their views of other people may change quickly. A person who is looked up to one day may be looked down on the next day. These suddenly shifting feelings often lead to intense and unstable relationships.
Other symptoms of BPD include:
Fear of being abandoned
Feelings of emptiness and boredom
Frequent displays of inappropriate anger
Impulsiveness with money, substance abuse, sexual relationships, binge eating, or shoplifting
Intolerance of being alone
Repeated crises and acts of self-injury, such as wrist cutting or overdosing
Signs and tests
Like other personality disorders, BPD is diagnosed based on a psychological evaluation and the history and severity of the symptoms.
Many types of individual talk therapy, such as dialectical behavioral therapy (DBT), can successfully treat BPD. In addition, group therapy can help change self-destructive behaviors.
In some cases, medications can help level mood swings and treat depression or other disorders that may occur with this condition.
The outlook depends on how severe the condition is and whether the person is willing to accept help. With long-term talk therapy, the person will often gradually improve.
Call your health care provider if you or your child has symptoms of borderline personality disorder. It is especially important to seek help right away if you or your child is having thoughts of suicide.
Blais MA, Smallwood P, Groves JE, Rivas-Vazquez RA. Personality and personality disorders. In: Stern TA, Rosenbaum JF, Fava M, Biederman J, Rauch SL, eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, Pa: Mosby Elsevier;2008:chap 39.
Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and David B. Merrill, MD, Assistant Clinical Professor of Psychiatry, Department of Psychiatry, Columbia University Medical Center, New York, NY. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.