"The genetic component of borderline personality disorder (BPD) is likely stronger than previously believed, with most research focusing on low-functioning individuals, which skews the data."
"Estimates of the genetic origins of BPD are often derived from studies of the lowest-functioning group, leaving out moderate- to high-functioning individuals who may not seek diagnosis."
"The concordance rate for BPD in monozygotic twins is approximately 35%, suggesting that while genetics play a role, they do not solely determine the disorder's development."
Research on borderline personality disorder (BPD) has evolved, revealing a stronger genetic component than previously thought. Early theories emphasized abandonment trauma, particularly during a critical developmental window. However, many individuals with diverse histories also develop BPD. Current studies often focus on low-functioning individuals, leading to potentially skewed estimates of the genetic influence. The concordance rate for BPD in monozygotic twins is about 35%, indicating that genetics alone cannot fully explain the disorder's development.
Read at Psychology Today
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