In TCM, there are the four basic steps used in diagnosing a disease. First, inspection indicates that doctors screen the patients’ appearance seeking abnormalities such as skins, tongue and bodily secretions. Next, auscultation and olfaction is a ways for doctors to listen patient’s conversation, sounds of coughing and breathing, also smell breath and body odor from patients. Then, inquiry clarifies that doctors ask the patients to know their own observed symptoms, past health, personal lifestyle, family history and other key information for reaching a diagnosis. Finally, pulse-taking and palpation refer that doctors feel the condition of pulse by pressure of the hand or fingers to know the inner change of symptom.