High total bilirubin 26.6μmol/L can be caused by physiological factors or by disease factors such as cirrhosis, hepatitis, cholecystitis, etc. It does not matter if it is caused by the former, but caution is needed if it is caused by the latter. The normal range of total bilirubin in adults is 3.4~17.1μmol/L, so total bilirubin of 26.6μmol/L belongs to the high level, which is hidden jaundice; it may be caused by physiological factors such as alcohol consumption, emotional fluctuation, strenuous exercise, and so on. In this kind of case, after abstaining from alcohol, avoiding emotional fluctuation, and avoiding strenuous exercise and so on, it can be recovered, so it is generally not important. In addition, elevated total bilirubin can also be seen in pathological factors, such as cholecystitis, cirrhosis, hepatitis, gallstones, pancreatic head cancer, etc., such cases need to be treated, which is more important. In such cases, treatment is needed and is more important. It is recommended to go to the hospital and ask the doctor to determine the cause of the problem.