High jaundice can cause weakening of digestive function, affecting brain development, liver function abnormality and other hazards, patients with symptoms of high jaundice need to seek medical treatment in time. 1. Weakening of digestive function: obstructive jaundice can’t discharge bile into the intestinal cavity, and bile is involved in the digestive function, therefore, when the patient is obstructive jaundice, indigestion, poor appetite, abdominal distension and other symptoms will appear. 2. Affecting brain development: when the patient is hemolytic jaundice, especially when the index of hemolytic jaundice is too high in newborn babies, it will cause kernel jaundice, which will cause jaundice to stain the brain, affecting the development of the brain, which will lead to the intellectual impairment, etc. Once jaundice in newborn babies doesn’t go away for a long time, it is necessary to consult a doctor for diagnosis and treatment in time to avoid the delay of the disease. 3. Liver function abnormality: when the patient is high hepatocellular jaundice, it may cause damage to the liver organs, affecting the normal liver function, and in serious cases, it may cause hepatitis and other diseases. High jaundice has a great impact on the body, once jaundice occurs, the patient should find out the cause of the disease in time and treat the symptoms.