Personality is a complete psychic structure that embraces emotional and cognitive traits, forms of experiencing and responding, temperament, morality and character. It marks a comprehensive psyche and includes temperament, character, abilities, beliefs, interests, attitudes, values, motives. Personality is in the psychological sense the whole of a person, its comprehensive psychic entity. Personality disorder can become exacerbated after the loss of a significant person to provide support or a pre-stable social situation. However, the development of personality change in middle-aged or later in life justifies judgment for the possible existence of personality changes due to a general health condition or an unrecognized psychoactive substance disorder. About the disorder can provide information on the emotional response of the patient and their perception of what causes them to suffer, and how others behave towards them. Diagnosis rests on perceived repeated behaviors or perceptions that cause suffering and hinder social functioning. Patients often have no insight into these ways; hence the treatment is initially based on the data of those in contact with the patient. treatment depends on the type of personality disorder, some general rules apply. A family and friends can behave in such a way as to, or enhance or alleviate the patient's problematic behavior or thought, so their involvement helps and is often of the utmost importance. An early attempt to make a person realize that the underlying problem lies in who she is herself. The psychiatric nursing care plan must be based on the knowledge and understanding of the patient's condition and needs, and must be based on a holistic approach to the problem the patient faces. Based on the critical analysis of the patient's behavior, the nature of the mental disorder and many other factors, a nursing diagnosis is provided that serves as a nursing team as a guide to nursing care.