High bilirubin in the elderly is most often seen in liver and biliary diseases. Total bilirubin includes high direct bilirubin and high indirect bilirubin. 1. High direct bilirubin: It is usually caused by biliary tract obstructive factors, and common diseases include choledochal stones, choledochal tumors, hepatic bile duct stones, and tumors of the common hepatic duct. These diseases can cause bile duct obstruction and biliary stasis leading to elevated direct bilirubin. 2. Indirect bilirubin elevation: mostly seen in hepatitis, fatty liver, alcoholic liver and so on. In addition, eating too much bilirubin-containing food can also lead to elevated bilirubin, such as eating a large number of carrots, etc., or after strenuous exercise, excessive fatigue can also cause elevated bilirubin, which is physiological. Elevated bilirubin is characterized by yellowing of the skin and yellowing of the sclera, often accompanied by pain in the right upper abdomen, aversion to grease, fever and other symptoms. Elderly people with elevated bilirubin need to consult a doctor in time, do not blindly take medication, under the guidance of the doctor for targeted treatment.