Personality is the way of thinking, feeling and behaving that makes a person different from other people. An individual’s personality is influenced by experiences, environment (surroundings, life situations) and inherited characteristics. A personality disorder is a way of thinking, feeling and behaving that deviates from the expectations of the culture, causes distress or problems functioning, and lasts over time. They usually have a different pattern of behaviour. That may vary person to person. This may be a different: Way of thinking about oneself and others Way of responding emotionally Way of relating to other people Way of controlling one’s behavior The 10 specific personality disorders are grouped into three categories called “clusters”. Cluster A: Paranoid personality disorder: a pattern of distrust and suspiciousness where others’ motives are seen as mean or spiteful. People with paranoid personality disorder often assume people will harm or deceive them and are reluctant to confide in others or become close to them. Schizoid personality disorder: a pattern of detachment from social relationships and a limited range of emotional expression. A person with schizoid personality disorder typically does not seek close relationships, chooses solitary activities and appears indifferent to praise or criticism from others. Schizotypal personality disorder: a pattern of acute discomfort in close relationships, distortions in thinking or perception, and eccentric behavior. A person with schizotypal personality disorder may have odd beliefs or magical thinking, odd or peculiar behavior or speech, or may incorrectly attribute meanings to events. Cluster B: Antisocial personality disorder: a pattern of disregarding or violating the rights of others. A person with antisocial personality disorder may not conform to social norms, may repeatedly lie or deceive others, or may act impulsively. Borderline personality disorder: a pattern of instability in personal relationships, emotional response, self-image and impulsivity. A person with borderline personality disorder may go to great lengths to avoid abandonment (real or perceived), have recurrent suicidal behavior, display inappropriate intense anger or have chronic feelings of emptiness. Histrionic personality disorder: a pattern of excessive emotion and attention seeking. A person with histrionic personality disorder may be uncomfortable when he/she is not the center of attention, consistently use physical appearance to draw attention or show rapidly shifting or exaggerated emotions. Narcissistic personality disorder: a pattern of need for admiration and lack of empathy for others. A person with narcissistic personality disorder may have a grandiose sense of self-importance, a sense of entitlement, take advantage of others or lack empathy. Cluster