Fatteme Raiisi - Department of Cognitive Sciences, Institute of Cognitive Science Studies, Tehran, Iran.
Zahra Reyhaninejad kafi - Sport Pathology and Corrective Exer- cises, Physical Education and Sports Science Faculty, Tehran University, Tehran, Iran.
Razieh Rahmani - General psychology, Refah Universi- ty, Tehran, Iran.

Aims: The purpose of this study is to investigate the prediction of pain anxiety symptoms based on pain perception with the mediating role of mental pain in in patients suffering from musculoskeletal disorders. Method and Materials: This research is a cross-sectional study in which descriptive– correlational method was applied. The study population was all musculoskeletal patients in Tehran, Iran in ۲۰۲۱. In present study, ۳۰۰ musculoskeletal patients were selected via candidate sampling method. They completed the Orbach & Mikulincer Mental Pain Scale (۲۰۱۸), Melzack McGill Pain Questionnaire (۱۹۷۵) and Paknejad et al. Pain Anxiety Symptoms (۲۰۱۴). Pearson correlation & bootstrap test were used to analyze data through SPSS-۲۲. Findings: There was significant negative relationship between pain perception and mental pain and conversely and significant direct positive relationship between pain perception and pain anxiety symptoms (P۰.۰۱>). Moreover, itwas shown the mediating role of mental pain in the relationship between pain perception and pain anxiety symptoms in patients with musculoskeletal pain.  Conclusion: To conclude, based on the results, it could be argued that pain is affected by mental components and if the psychological reasons are relieved, the pain will be perceived    less severe. 

Pain Perception, Mental Pain, Pain Anxiety Symptoms, Musculoskeletal Patients.