The book is devoted to the issues of early recognition of personality disorders and the organization of assistance to such patients in the general medical network. Data on the prevalence of personality disorders, modern ideas about etiology and pathogenesis are presented, the clinical picture of the main variants of personality disorders, as well as personality disorders in the main mental diseases is described. Typical decompensation options for each type of personality disorder are considered, the tactics of the doctor in establishing contact with such patients, typical difficulties and ways to overcome them are discussed in detail. Communication techniques and techniques of general psychotherapy are presented, which contribute to the establishment of complimentary relationships with patients suffering from personality disorders. Designed for general practitioners, family doctors, district therapists, doctors of other specialties, clinical residents and clinical interns of higher medical institutions.