Psychological symptoms and psychiatric diagnosis in patients with fibromyalgia.

Previous studies of psychological symptoms and psychiatric diagnoses in fibromyalgia have methodologic shortcomings. Although depressive and somatic symptoms are common, they are not more prominent than in other chronic medical conditions. There may be an association of depression with fibromyalgia, but this is not a causal one. The vast majority of patients with fibromyalgia do not meet criteria for a current psychiatric diagnosis.