Both high direct and indirect bilirubin are suggestive of cholestatic jaundice, hemolytic jaundice, and hepatocellular jaundice.
Cholestatic jaundice is more likely when direct bilirubin is significantly increased and indirect bilirubin is mildly increased. Cholestatic jaundice is usually characterized by a dark yellow color of the skin and mucous membranes, and in cases of complete obstruction of the bile ducts, the color is dark yellow or even yellowish green, accompanied by itching of the skin and bradycardia, and light-colored or white clay-colored stools.
Hemolytic jaundice is more likely when direct bilirubin is mildly increased and indirect bilirubin is significantly increased. Hemolytic jaundice is usually light lemon color of the skin and mucous membranes, not accompanied by skin itching, acute hemolysis can be fever, headache, vomiting, back pain, anemia and hemoglobinuria, and in severe cases, there can be acute renal failure.
When both direct bilirubin and indirect bilirubin are moderately increased, it suggests that hepatocellular jaundice is more likely. Hepatocellular jaundice with light to dark yellow skin and mucous membranes may be accompanied by mild itching of the skin as well as other manifestations of hepatic pathogenesis, such as loss of appetite and fatigue.
High direct and indirect bilirubin suggests abnormal liver function, and the specific disease is closely related to the degree of elevation of direct and indirect bilirubin.