High bile acids in pregnant women is one of the more specific conditions of pregnancy that often has a detrimental effect on the fetus. If high bile acids form cholestasis, it may have some effect on the fetus during pregnancy. If the bile acid is not too significantly elevated and does not form cholestasis, it may be relatively safe. If cholestasis develops during pregnancy and symptoms appear, it may affect the development of the fetus or the safety of the fetus, for example, it may cause premature labor, hypoxia or respiratory distress. If the elevation of bile acid is only minimal, it will not affect the fetus too much. After birth, the total bile acid of the mother may return to normal, and if the fetus is delivered successfully, it will not have much effect on the future.