Borderline personality disorder (BPD) is a serious psychiatric condition. A personality disorder is a general term for an abnormal, lifelong pattern of behavior and thoughts. People with a borderline personality are unstable in their self-image, moods, behavior, and relationships with others.
No one knows what causes borderline personality disorder. The disorder may be associated with abnormalities in the structures and pathways in the brain that regulate emotion.
The exact cause of borderline personality disorder is unknown. Most experts believe that the disorder is caused by a combination of the following factors:
People with BPD are more likely to have other psychiatric disorders, including: