PERSONALITY
Personality disorders in general are pervasive, enduring patterns of perceiving, reacting, and relating that cause significant distress or functional impairment.
Personality traits represent patterns of thinking, perceiving, reacting, and relating that are relatively stable over time.
Personality disorders exist when these traits become so pronounced, rigid, and maladaptive that they impair work and/or interpersonal functioning. These social maladaptations can cause significant distress in people with personality disorders and in those around them.
MerekManual