Causes of High Bilirubin Levels (AKA Hyperbilirubinemia)

5. Genetic and Blood-Related Causes of High Bilirubin

Certain genetic and blood disorders can lead to elevated bilirubin levels, impacting how the body processes or breaks down red blood cells. One common genetic condition, Gilbert’s syndrome, hinders the liver’s ability to process bilirubin efficiently. While typically benign, it can cause periodic episodes of jaundice triggered by factors like dehydration, illness, fasting, or menstruation. Though it rarely leads to serious liver disease, Gilbert’s syndrome may increase sensitivity to certain medications.

Another rare genetic condition, Dubin-Johnson syndrome, results from changes in the gene that helps transport bilirubin out of liver cells. While this condition is benign and often asymptomatic, it can be difficult to diagnose due to its rarity and subtle presentation.

Blood disorders such as hemolytic anemia and sickle cell anemia can also raise bilirubin levels by accelerating the breakdown of red blood cells. This rapid turnover releases more bilirubin than the liver can process, leading to noticeable symptoms like jaundice in some cases.