This is the first study determining the relationship between firomyalgia and the Zuckerman-Kuhlman Personality Questionnaire (ZKPQ), and one of the few that establishes the relationship between this diagnosis and normal personality traits. A sample of female adults diagnosed with fibromyalgia (n = 47) was paired by age and sex with normalrange controls (n = 94). Logistic regression analysis showed that high scores on Neuroticism-Anxiety and low scores on Sociability were the most powerful predictors of being diagnosed with fibromyalgia. The ZKPQ with its specific subscales and control scale provides a more refined personality assessment of these patients. Physicians and psychologists are encouraged to work together toward a personalized psychological assessment of fibromyalgia to build a comprehensive model for a better conceptualization of this medical condition. © 2014: Servicio de Publicaciones de la Universidad de Murcia.