Total bilirubin of 24μmol/L is high for adults and slightly low for newborns, but it is not normal. It is not possible to determine whether it is important simply by the value, and in most cases it is not important, but it cannot be ruled out that it is caused by some serious diseases. The normal range of total bilirubin in newborns is 34-103 μmol/L for 0-1 day olds, 103-171 μmol/L for 1-2 day olds, and 68-137 μmol/L for 3-5 day olds, and 3.4-17.1 μmol/L for adults. For newborns, a total bilirubin of 24 μmol/L is on the low side, probably during the recovery period of acute jaundice and hepatitis, and it does not matter in this case. However, if the neonate has aplastic anemia, it can also lead to a low total bilirubin, and aplastic anemia can have serious effects if it is not actively treated. In adults, a total bilirubin of 24 μmol/L is considered high, but does not produce obvious symptoms. Only when the total bilirubin exceeds 34.2 mol/L, yellow staining of the skin, mucous membranes, and sclera may occur, which is usually caused by mild jaundice. Mild jaundice is usually not considered important and can be treated under medical supervision.