BPD stands for Borderline Personality Disorder, which is a mental health disorder that affects the way a person thinks and feels about themselves and others, causing problems functioning in everyday life. People with BPD may experience intense mood swings, have difficulty managing their emotions and behavior, and have a pattern of unstable relationships. They may also engage in impulsive, self-destructive behaviors. The exact cause of BPD is not known, but it is believed to be caused by a combination of inherited or internal biological factors and external environmental factors, such as traumatic experiences in childhood. BPD can be treated with individual talk therapy, group therapy, and medications. Dialectical behavior therapy (DBT) and cognitive-behavioral therapy (CBT) are two types of therapy that can be helpful for people with BPD.