Total bile acid test is a good indicator of liver and biliary function and is a relatively effective indicator of liver function. It is important to pay attention to high total bile acids during liver function tests. What are the causes of high total bile acids? Before answering what causes high total bile acids, let’s understand what is the normal value of total bile acids? In liver function tests, the normal serum total bile acid (TBA) level is 0-10 μmol/L. What are the causes of high total bile acids? There are several reasons: 1. Total bile acids are mainly synthesized, decomposed and metabolized by the liver, and when liver cells are damaged, the metabolism of bile acids will be abnormal, which will lead to high total bile acids. 2, normal diet can also cause high total bile acids, but this situation can return to normal after a period of time after meals. 3, pregnant women can also cause high total bile acids, high total bile acids in pregnant women is due to abnormal bile acid metabolism and changes in hormone levels during pregnancy.