Personality disorders are diagnosed on a separate axis in the American Psychiatric Association's
Diagnostic and Statistical Manual of Mental Disorders
in recognition of their prevalence and their impact on the treatment and course of most every other mental disorder. Ten personality disorders are included in DSM‐IV: paranoid, schizoid, schizotypal, antisocial, borderline, histrionic, narcissistic, avoidant, dependent, and obsessive‐compulsive. The phenomenology, epidemiology, etiology, childhood development, and pathology of each are discussed. Also discussed are issues of gender and culture bias, comorbidity, and the conceptualization of personality disorders as maladaptive variants of common personality traits. This alternative conceptualization is in contrast to the current DSM‐IV conceptualization of personality disorders as disorders with specific etiologies and pathologies that are qualitatively distinct from general personality functioning.