Bilirubin is a yellow compound that indicates the breakdown of red blood cells in the body. It is transported to the liver, where it is processed and excreted into the bile. Proper liver function ensures bilirubin is effectively filtered from the blood and converted into a form that can be eliminated through the digestive system. Blood bilirubin levels are an important marker of liver health, bile duct function, and red blood cell turnover.
High bilirubin levels can be caused by: