Jaundice should be differentiated between obstructive causes of jaundice and hepatocellular jaundice due to hepatocellular necrosis. First of all, the patient needs to have a blood test for liver function, whether the total bilirubin is above 34.2 μmol/L. In addition, it depends on whether the patient’s bilirubin is mainly elevated by direct bilirubin or by indirect bilirubin. For patients with predominantly elevated direct bilirubin, if there is a combination of elevated alkaline phosphatase and GGT, the patient should be considered to have biliary obstruction, which may be caused by stones, tumor disease of the biliary tract, or tumor compression of the head of the pancreas. If it is a stone, we should consider removing the stone from the common duct under ERCP. If it is a tumor of the biliary tract or a tumor of the head of the pancreas, we should consider further surgical treatment. In addition, in patients with elevated total bilirubin and indirect bilirubin, it is usually considered to be caused by hepatocyte necrosis or hemolysis. Patients with hemorrhagic jaundice may have a decrease in hemoglobin and a decrease in platelets and other blood cells in the blood count.