During the process of destroying red blood cells and excretion in bile, a yellow pigment called Bilirubin is produced. Bilirubin testing helps to specifically diagnose the cause of jaundice and yellow eyes.

Bilirubin is the main bile pigment formed from the degradation of heme in red blood cells. Bilirubin blood test is a special test necessary to assess the health status of humans.

Bilirubin is a degradation product of Heme - a component of Hemoglobin in red blood cells. The degradation process occurs in the reticuloendothelial cells such as the liver, spleen, and bone marrow.

Bilirubin is a yellow-orange pigment, produced by the process of excretion when red blood cells are broken down physiologically in the blood, then passes through the liver and finally out of the body. Therefore, quantitative Bilirubin testing will help support the determination of some abnormalities in the liver-bile and hemolysis.