Bilirubin exists in two main forms: unconjugated and conjugated. Unconjugated bilirubin is produced from the breakdown of red blood cells and travels to the liver bound to albumin

In the liver, it’s converted into conjugated bilirubin, a water-soluble form that can be excreted into bile and eliminated from the body. Understanding these types helps in diagnosing liver function, bile flow problems, and various forms of jaundice