As is known to all that, when we get sick, we should see a doctor, but for some patients, only after repeated visits to hospital can they ascertain the state of their illnesses. This can not be attributed to insufficient medical knowledge of doctor, but the patients themselves sometimes. Some skills are required for seeing a doctor, because the behavior of patients have crucial bearing to correctness of diagnosis made by doctor and recovery of patients as well. Therefore, following principles should be observed before/when seeing a doctor.

I. The female patients should not be richly made up. Patients must not make up before seeding a doctor, especially richly so. Because cosmetics will cover the original skin color, which is unfavorable to the diagnosis of anemia, jaundice, maculopapular and vascular naevus etc.

II. Do not see a doctor just after drinking or heavy smoking. Moderate drinking (especially ardent spirits) or heavy may cause acceleration of heart rate and pulse, fluctuation of blood pressure and other abnormal change, thus generating some misleading appearance and will pose certain difficulties to diagnosis.

Therefore, patients must not drink or smoke 4-6 hours before seeing a doctor.
　　
III. Do not take medicine before seeing a doctor. Some medicine, especially analgesics, antipyretic, anti-hypertension drug, anxiolytics and hypnotics etc, can conceal symptoms, thus medicine-taking is inadvisable before seeing a doctor unless under emergency circumstance.  

IV. Relax when seeing a doctor. It is natural for patient to feel nervous before doctor, but excessive nervousness or even fear will adversely affect diagnosis, because some symptoms will appear under high nervous status, such as faster heart rate, higher blood pressure and muscle tone etc, this will not only generate misleading appearance, but also affect medical examination.