Borderline personality disorder (BPD) is a complex mental health condition that causes emotional instability, relationship problems, a low sense of self-worth, and fear of abandonment. Other common symptoms include problems managing anger and recurring self-harming or suicidal behaviours.

The negative or destructive behaviours of borderline personality disorder are intense. These behaviours occur over a long period of time. They often occur in combination with other disorders such as depression, anxiety, or other mental health problems. People with this disorder often have problems with substance use, gambling, or eating disorders.

There is no cure for borderline personality disorder. But symptoms are often treated with counselling and medicines such as antidepressants or mood stabilizers. Most people who are treated for borderline personality disorder do get better over time. But treatment can be difficult, and recovery can take years.