I want to know what is the difference between personalty disorder and borderline personality disorder?

Bordeline is a type: "personality disorder" is a general term referring to long-standing problems in a persons thoughts and behaviors "borderline personality disorder" is a certain type of personality disorder generally consists of long-term, chronic problems with relationships, impulsivity and extreme negative emotions.

Borderline PD: All personality disorders have enduring, pervasive, and inflexible patterns of inner experience and behavior differing markedly from one's culture, beginning in teen years or early adulthood, & causing distress in relationships, work, etc. As one of these disorders, borderline pd has instability in interpersonal relationships, self-image, and affects, and marked impulsiveness. Self-harm too.