1, should not make up . Do not wear lipstick, rouge, eye shadow, nail polish and nail art, so as to reveal the true color of the face, lips and nails, which will help Chinese medicine practitioners to diagnose and make a judgment on the true condition. 2, should not eat food and drugs with color . Drink milk, soy milk and other milky white food; olives, plums, prunes and other dark-colored food; coffee, oranges and other yellow food, eating these things is easy to make the tongue stained white, black or yellow, that is, Chinese medicine said “dyeing moss”, can not show the true color of the patient’s tongue, can not correctly determine the condition. 3.Drinking alcohol, eating chili peppers or eating too hot or too cold food is not recommended. Wine and chili pepper are hot, which will make the blood and qi run faster, make the tongue red, and reduce the tongue coating, which will affect the diagnosis of the disease. 4. It is not advisable to consult the doctor after meals. After meals, not only the pulse is slow, but also the tongue becomes thin, the tongue becomes red, plus some foods tend to make the tongue discolored; this will lead to misdiagnosis of the doctor (or the best 1 hour after meals). It is best to visit the doctor early in the morning, brush your teeth but can not scrape the tongue. 5, do not use perfume and eat strong odor food. Smell odor is the important content of Chinese medicine smell diagnosis. If the patient ate garlic before the consultation, with perfume, with a strong smell of skin care products or bath with a shampoo, etc., will affect the accuracy of the smell diagnosis. 6, realistic attitude is very important. Questioning is an important method of TCM diagnosis to obtain information, so the patient must be truthful, detailed and serious answer to the doctor’s questions, never hide the condition, taboo. Especially women’s privacy, where the relationship between the diagnosis of disease, must tell the truth to the doctor. 7, female patients should remember their last menstrual period time.