Jaundice should be treated differently, whether it is jaundice caused by obstructive causes or hepatocellular jaundice caused by hepatocellular necrosis. First of all, the patient needs to take blood to check the liver function, whether the total bilirubin is above 34.2 μmol/L, and also to see whether the patient’s elevated bilirubin is mainly direct bilirubin elevation or indirect bilirubin elevation. For patients with mainly elevated direct bilirubin, if combined with elevated alkaline phosphatase and GGT, it is often considered that the patient has biliary obstruction, which may be caused by stones, or biliary tract tumors, or pancreatic head tumors caused by compression, and need to actively find out the cause of the disease. If it is a stone, we should consider removing the stone from the common duct under ERCP, and if it is a tumor of the biliary tract or the pancreatic head, we should consider further surgical treatment. For patients with elevated total bilirubin and indirect bilirubin, it is considered to be caused by hepatocellular necrosis or hemolysis. In patients with hemorrhagic jaundice, hemoglobin will decrease in blood routine, and platelets and other blood cells will decrease, at this time, it is necessary to further conduct peripheral blood smear, and if necessary, do bone marrow aspiration, to further determine whether the patient has the possibility of primary diseases of the blood system.