Borderline personality disorder (BPD) or threshold personality disorder is a mental disorder seriously affecting the sufferer feeling and thinking. This condition is characterized by moods and self-image that is constantly changing and difficult to control, as well as impulsive behavior.

Someone who has a personality disorder has a different way of thinking, perspective, and feelings compared to people in general. This condition often also causes problems in daily life and in relationships with other people.

About 1–4% of people in the world experience BPD. This disorder generally appears in late adolescence or young adulthood and is more common in women.

Causes of BPD ( Borderline Personality Disorder )

The exact cause of borderline personality disorder is not clearly known. However, the following factors are thought to trigger BPD:

  • Environment
    A number of negative environmental conditions are thought to play a role in causing this personality disorder. Examples include childhood abuse or abuse and the loss or abandonment of a parent. In addition, poor communication within the family can also increase the risk of developing BPD.
  • Genetics
    According to some studies, personality disorders can be passed down genetically or from parents to children. So, someone who has a family member with borderline personality disorder is more at risk of developing this condition.
  • Abnormalities in the brain
    Based on research, people with BPD have abnormalities in brain structure and function , especially in areas that regulate behavior and emotions. People with BPD are also suspected of having abnormalities in the function of brain chemicals that play a role in regulating emotions.

The above factors can indeed increase the risk of BPD. However, it does not mean that someone who has these risk factors will definitely experience BPD. The reason is, BPD is also not impossible for someone who does not have any of the risk factors above.