Indirect bilirubin, also known as unconjugated bilirubin, has a normal reference value of 3.4-17.0 μmol/L. Indirect bilirubin of 14 μmol/L can indicate that the bilirubin is within the normal range. It should be noted that the reference values listed here can only be used as a general reference and cannot be used as a basis for diagnosis because the testing instruments and reagents used differ, so the reference values also vary. In clinical practice, both indirect bilirubin and direct bilirubin are common subtypes of bilirubin. Usually, bilirubin is one of the bases to reflect whether the human liver function is diseased or not, while low or high indirect bilirubin can indicate liver lesions, such as hemolytic jaundice and cytogenic jaundice, which can cause different degrees of indirect bilirubin changes, therefore in liver In patients with liver diseases, the synthetic conversion ability of the liver is blocked and indirect bilirubin cannot be converted in a normal and timely manner, thus causing abnormalities in indirect bilirubin. High indirect bilirubin requires prompt consultation with the appropriate department to clarify the diagnosis and take appropriate treatment. Indirect bilirubin is low, this situation does not require special treatment, can continue to observe, usually pay attention to eat more vegetables and fruits, as well as eat more vitamin C-rich food, for the patient’s trace elements supplement, more positive significance. In addition, patients should avoid drinking alcohol and staying up late in the night in their daily life, and can take some vitamin C moderately.