Borderline personality disorder (BPD), also known as emotionally unstable personality disorder, is a long term pattern of abnormal behavior characterized by unstable relationships with other people, unstable sense of self, and unstable emotions. There is often an extreme fear of abandonment, frequent dangerous behavior, a feeling of emptiness, and self-harm. Symptoms may be brought on by seemingly normal events. The behavior typically begins by early adulthood, and occurs across a variety of situations. Substance abuse, depression, and eating disorders are commonly associated with BPD. About 10% of those with BPD die by suicide.