Borderline personality disorder
The cause for BPD is not known. There may be several causes for people developing BPD. Some researchers think that it might be caused by trauma in childhood, such as sexual abuse, physical abuse and neglect. Many people with BPD were abused when they were children. Modern thinking as demonstrated by functioning MRI scans is that neurotransmitters within the brain are not working correctly, and messages are not conducted in the usual way.