Crigler Najjar Syndrome is a very rare, genetic based, but potentially very serious disease that most often manifests itself in the new born. It causes hyperbilirubinemia and, untreated, can cause brain damaging kernicterus and death.

This information is a resource for carers and an introduction for medical professionals. References are provided to the medical literature and sources of further information.

The information is an aid to, but not a substitute for, obtaining timely, experienced and well-qualified medical advice.