There are many foods in daily life that can make the skin yellow, these foods are mainly rich in carotene, if consumed for a long time or in large quantities in the short term, it may cause a significant increase in the concentration of carotene in the blood, thus appearing yellow skin, common carrots, pumpkin, papaya, mangoes, oranges and so on. When these foods are discontinued, the symptoms of yellowing skin will gradually improve or disappear, so there is no need to give special concern. When yellowing of the skin occurs clinically without the consumption of food, it is also important to be alert to whether it is caused by a disease. The clinical term for yellowing of the skin is jaundice, which mainly includes hepatocellular jaundice, obstructive jaundice and hemolytic jaundice. Hemolytic jaundice is mainly caused by a blood group discrepancy, but may also be caused by a transfusion discrepancy or hemolytic disease. Hepatocellular jaundice is mainly caused by necrosis of liver cells, which may be caused by drugs, hepatitis, alcohol consumption, and many other reasons. Obstructive jaundice is mainly due to stones, tumors, etc. Further clinical examination by imaging and hematology is required to clarify the specific cause.