A high total bilirubin of 31umol/L suggests the presence of some diseases, such as hepatitis, cirrhosis, cholelithiasis, pancreatic head cancer, and so on. Exhaustion, staying up late, drinking alcohol, oily diet and other dietary reasons can also cause the index to rise. 1. Disease causes: such as hepatitis, cirrhosis can have symptoms such as jaundice, loss of appetite, abnormal viral series, liver function tests, it is difficult to be cured completely; such as cholelithiasis can have symptoms such as jaundice, pain in the right back, abnormal cholangiography, most of them can be cured; such as pancreatic head cancer can have symptoms such as jaundice, abdominal pain, abnormal intensified CT, tumor markers, etc, and it needs surgical treatment. 2. Dietary reasons: generally, it can be recovered through dietary adjustments, and usually there is no obvious discomfort. For high total bilirubin, it is recommended to consult a doctor to determine the condition.