Borderline personality disorder (BPD) is a mental health condition characterized by emotional instability, which can lead to unpredictable moods, behaviors, and relationships. People with BPD often experience difficulties in maintaining stable interpersonal connections, have a distorted self-image, and exhibit impulsive tendencies. A question frequently asked is, “Is borderline personality disorder genetic?”
Research has explored the genetic components of BPD, particularly through twin studies. These studies have indicated that genetics account for approximately 42% of the variation in BPD, while other factors such as environmental influences contribute to the remaining 58% (Salters-Pedneault, 2020). Close relatives, such as parents, children, or siblings, who have BPD may increase an individual’s vulnerability to developing the disorder.
However, it is important to note that these studies cannot definitively determine the exact contribution of genetics to the development of BPD. This is due to the fact that first-degree relatives not only share genetic makeup but also encounter similar environmental factors. For instance, siblings may experience similar parenting styles, peer influences, and cultural backgrounds.