Background: Primary Dysmenorrhea (PD), depression, anxiety, and stress among women with Fibromyalgia (FM) and healthy females are the common problems seen these days. It is important to determine possible factors related to Primary Dysmenorrhea in FM. Methodology: The present study was conducted on 90 female patients diagnosed with FM and age and sex-matched healthy controls. All patients were evaluated primary dysmenorrhea (PD). The premenstrual syndrome was assessed among the patients for the presence of one or more affective or somatic symptoms within the five days preceding menses. The diagnosis of primary dysmenorrhea was defined as having abdominal pain or lower back pain lasting at least two days during a menstrual period. Dysmenorrhea was assessed via a visual analogue scale. Dysmenorrhea was rated via a Menstrual distress questionnaire Scale in all the participants