The yellowing of the skin on a child’s stomach can be caused by foodborne factors, anemia, liver disease and other causes. 1. Foodborne factors: children overconsumption of loquat, pumpkin, carrots, oranges and other foods, there may be yellow skin, and subsequently reduce the intake of such foods, skin yellowing will gradually improve. 2. Anemia: If the child has moderate to severe anemia, it may be manifested as yellowish skin, as well as loss of appetite, poor spirit, inability to concentrate and other manifestations. 3. Liver disease: if the child has viral hepatitis, liver tumor disease, there may be increased bilirubin levels, and then jaundice, yellow sclera, liver palms and other manifestations. If a child’s stomach skin turns yellow, it is recommended to consult a doctor to further clarify the cause of the disease, and then under the guidance of the doctor to carry out treatment.