The normal range of total bile acids is 0-9.67 μmol/L, while if the test result is 15 μmol/L, it is a high phenomenon, which may be related to physiological factors, but it may also be due to pathological factors, such as liver diseases. Prompt consultation should be made to clarify the cause of the disease. 1. Physiological factors: total bile acids 15μmol/L may be related to physiological factors. For example, a transient increase in total cholesterol after eating, if not accompanied by other uncomfortable symptoms, this situation is generally not too worried, after a period of time will return to normal. It may also be related to prolonged drinking, excessive fatigue, strenuous exercise, etc., should be regular life, appropriate rest, control the amount of alcohol. 2. Pathological factors: high total cholesterol may be related to pathological factors, common liver diseases, such as viral hepatitis, fatty liver, cirrhosis and so on. The more serious the liver function damage, the more obvious the elevation of serum total bile acids. The presence of biliary obstruction factors, such as choledocholithiasis and bile duct occupancy, can also lead to elevated bile acids. If the total bile acid is 15 μmol/L, you should consult the doctor to clarify the cause of the disease and treat it as soon as possible.