If there is only yellowing of the face, the first thing to do is to rule out the cause from several aspects. First, the symptoms of chronic diseases, such as chronic liver disease, severe anemia may cause skin yellowing; second, because of personal constitution and genetic relationship; third, some skin diseases can cause yellowing, such as facial chloasma, in addition to Chinese medicine identification, spleen and stomach weakness will lead to facial yellowing. If you exclude chronic diseases and some skin problems, you can usually enhance physical exercise and eat more vegetables and fruits rich in vitamin C to improve.