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