For the causes of yellow and blue face, they are as follows: 1, anemia: mainly related to the usual improper diet and weak gastrointestinal function, the nutrients needed by the body are not absorbed and replenished in time, so it is easy to become anemic due to the lack of certain nutrients. When the anemia is serious, the person’s face is yellow and blue, and it is easy to appear the body fatigue, cold limbs, dizziness. 2, liver disease: for example, common liver cirrhosis, liver cancer, fatty liver and other diseases, in the process of development, will lead to varying degrees of the person’s face yellow and blue, if this situation, it is best to go to the hospital in a timely manner for detailed examination and symptomatic treatment.