When the patient's chief complaints were not explained in a rational manner based on usual medical examinations, usually those patients tend to be transfer to the psychiatry as being suspicious diagnosed somatoform disorder or psychogenic disease. But the treating these unexplainable clinical conditions in psychiatric category might to be lead to the mind–body dualism in clinical settings. Prominent clinical attitude based on only EBM (evidence based medicine) under ever–improving medical sciences would be attentive mainly to the biomedical model, not on the bio–psycho–social medical model. It has been unknown the precise neural mechanism of psychosomatic correlation even now. Nowadays, we clinicians should confront the patient's complaints with mind–body identity theory and explore their cause of disease as whole–patient approach.