This paper examines the diagnostics of perturbation (fan, 煩 ) in Shang han lun ( 商寒論 ). In the paper, perturbation is not as psychological as we might suppose it to be nowadays. It can occur around the heart-stomach area, the oral cavity, the muscle and bones, and the limbs. Holding that emotion is intimately interwoven with the body experience, the Physician ( 醫家 ) teaching is an embodiment of the idea of the holistic mind-body entity of intrinsic reciprocity. Not only is there no separation between body and mind in the illness of a patient, there is also no separation in terms of subject and object in a physician's diagnosing of a patient. The physician must involve himself with the patient's body within its living situation and perceptual manifestations. Hence the treatment always requires a face-to-face presence of both the patient and the physician as a perceiving subject. The non-detached attitude of the physicians from the patients explains why they always put themselves in a position where they can actu-ally perceive and interact with the patient's body. And this is the character-istic of traditional Chinese medicine.