Learn about bilirubin, a yellow pigment formed from red blood cell breakdown, and how it is measured in blood, urine, or amniotic fluid. Find out the causes and symptoms of high or low bilirubin levels in adults and newborns. We would like to show you a description here but the site won’t allow us. Learn about the common blood tests for jaundice, a condition that causes yellowing of eyes and skin due to high bilirubin levels. Find out the symptoms, causes, and benefits of getting tested for jaundice and its underlying conditions. Jaundice is a condition that makes your skin and eyes yellow due to high bilirubin levels in your blood. Learn about the three types of jaundice, how they are diagnosed, and what treatments are available.