Indirect bilirubin is also called unconjugated bilirubin, and unconjugated bilirubin of 17.7 umol/L is not normal. Elevated indirect bilirubin is considered to be caused by increased destruction of red blood cells, decreased liver function and inborn metabolic diseases, and patients need to be treated accordingly. 1. Increased destruction of erythrocytes: it is usually caused by hemolysis, such as irrational use of medicines, input of blood of unmatched blood type and eating fava beans, which cause destruction of erythrocytes. Patients should find out the cause of the disease in time, targeted treatment. 2. Decrease in liver function: When patients have cirrhosis or hepatitis, the liver’s ability to take up and transform unconjugated bilirubin decreases, resulting in an increase in unconjugated bilirubin. It is recommended that the patient should consult a doctor in time and take treatment according to his/her own condition. 3. Inborn metabolic diseases: If the patient has Gilbert’s syndrome, the lack or decreased quantity of certain enzymes in the liver cells of the patient will reduce the binding ability of the patient to unconjugated bilirubin. It is recommended that patients go to the hospital for timely treatment and actively cooperate with the doctor’s appropriate treatment. If the indirect bilirubin is elevated, it is recommended to consult the doctor in time, complete the relevant examinations, clarify the cause of the disease, and actively treat the disease under the guidance of the doctor to avoid delaying the condition.