New concept for backache: biopsychosocial pain syndrome.

Recently a new concept for explaining backache, "biopsychosocial pain syndrome," has been suggested. Psychosocial factors play an important role in the development and persistence of backache from an early stage. Diagnosis and treatment of backache should be based on the new concept. A good relationship between doctors and patients influences treatment outcome and patient satisfaction. Treatment should be decided by patients themselves, after being informed of the natural history of the disease and the merit and demerit of the treatment.