Fibromyalgia syndrome (FMS) is a nonarticular rheumatic disease with unknown etiology and is characterized by widespread pain, increased tenderness in some anatomical regions, increased pain sensitivity, sleep disorders, fatigue and frequently by psychological distress. Psychiatric comorbidity is high in FMS and reports denoting to relationship of FMS and psychologial trauma have increased recently. We aimed to assess whether or not a treatment modality concerning trauma can alleviate symptoms of FMS. One of the FMS patients who was admitted to the outpatient department of Physical Medicine and Rehabilitation was randomly assigned to the present study. After that, assessed whether patients's traumatic experiences, and the Eye Movement Desensitization and Reprocessing (EMDR) therapy was performed to the patient. A thirty-four year old female married patient, had symptoms of FMS for five years. She was not on any medication. Intensity of her pain was identfied as 10 by visuel analog scale (VAS), tender point count was 15 out of 18 and the scores of Beck Depression Scale (BDS) and The Post Traumatic Diagnostic Scale (PDS) were 22 and 41, respectively. After the EMDR treatment VAS score was 3, tender point count was 11 and the scores of BDS and PDS were 2 and 6, respectively. The recovery was sustained at the 3rd and 6th months of follow up. In this case, we observed amelioration in both psychiatric and somatic symptoms of the patient after EMDR therapy and we discussed the possible mechanisms of this recovery. Searching for traumatic experiences and treating those traumas in FMS patients by EMDR or similar methods may result in favourable results.