The yellow face during pregnancy may be caused by nutrient deficiency, or may be caused by combined diseases during pregnancy. If the yellow face appears in early pregnancy, if the pregnant woman’s reaction to pregnancy vomiting is serious, it is considered a physiological phenomenon. If a pregnant woman has yellowing symptoms for a long time, the symptoms are serious and accompanied by other clinical symptoms, it is considered that there may be serious anemia or liver function abnormalities, in this case, the pregnant woman should go to a regular public hospital as soon as possible to do routine blood and liver function tests and ultrasound examination of the liver and biliary system to further clarify the diagnosis and then carry out treatment, pay attention to more rest and do not stay up late.