Gilbert syndrome is usually diagnosed after puberty, when changes in sex hormones cause bilirubin levels in the blood to rise. It’s often found when doctors do a blood test for another reason.

If your child or teen has symptoms of Gilbert syndrome, your pediatric gastroenterologist at Orlando Health Arnold Palmer Hospital Center for Digestive Diseases and Nutrition will ask when their symptoms occur and whether any close family members have a liver condition. A simple blood test can diagnose Gilbert syndrome. Genetic testing can also be done, but it usually isn’t needed.