Since there is today strong evidence indicating that psychosocial factors have a greater impact on disability then biomechanical or biomedical factors and strong evidence that psychosocial factors are strongly linked to the transition from acute to chronic pain, concept of psychosocial risk factors has been developed. Although the concept of psychosocial risk factors still is relatively new, there seems to be an international consensus about the importance of psychosocial risk factors for the prevention of the development of chronic pain but there appears to be considerable uncertainty about the clinical application.