Crigler-Najjar Syndrome or CNS is a rare genetic (ie inherited) disorder affecting the metabolism of bilirubin (a substance made by the liver). Frequently this makes the person appear to be yellow.

Starvation, circulating infections, certain medications, hepatitis, and cirrhosis can all cause hepatic jaundice, as can certain hereditary defects of liver chemistry, including Gilbert's syndrome and Crigler-Najjar syndrome.

Lee Najjar is Arab.

Alexandre Najjar was born in 1967.

Michael Najjar was born in 1966.