Somatoform disorders comprise a heterogeneous group of psychiatric illnesses in which physical symptoms or complaints without objective organic causes are present and in which there are strongly associated psychological factors. The seven somatoform disorders listed in DSM-IV-TR (American Psychiatric Association 2000) are 1) somatization disorder, 2) undifferentiated somatoform disorder, 3) hypochondriasis, 4) conversion disorder, 5) pain disorder, 6) body dysmorphic disorder (BDD), and 7) somatoform disorder not otherwise specified. Prevalence rates vary by diagnosis, but in general, across ages, somatoform disorders and their less severe variants have been seen in 16% of primary care outpatients (DeWaal et al. 2004) and in 23% of outpatients with medically unexplained symptoms (Smith et al. 2005).