It is the yellowish coloration of the skin, so characteristic of liver problems. The cause of jaundice is also an accumulation of bilirubin in the blood. When it is in contact with the skin, bilirubin is sequestered into the interstitial fluid. It builds up in the skin and slowly changed its color. Besides changing the skin color, it also does the same on the mucosa (as in the inner lining of your mouth and the white portion of the eye). That’s why examining the eyes is fundamental if we want to detect jaundice. If the white portion of the eyes is not tainted in yellow, it is likely another cause different from a bilirubin buildup in the blood due to hepatitis B.