Jaundice is a condition that bilirubin built up in blood which causes yellowness of skin mucous and sclera. Usually some problems of liver, gallbladder and blood might cause jaundice. The gall, is a small sac attached onto the liver, where the bilirubin is processed. After processed by liver, the normal rutin for bilirubin is to travel through gallbladder and then into small intestines with bile. If you got gallstone, and the stone is small, you might have no feelings at all. But if the stone is large enough which would clogged the duct that bile can't drained out, then you might get some trouble. Once the gall duct blocked with stone, the bile can't be drained, but the gallbladder wouldn't stop filling in with new more bile, then this small sac would be enlarged. This is why many patients with gallstone got severe pain at the stomach pit. It also makes patients nausea and vomiting. As more and more bile built up in the gallbladder, it would be absorbed into the blood, which makes a increasing higher level of bilirubin in blood and so tinged the skin, sclera and mucous a yellowish color. It requires a surgery to get the stone out and open the duct. It is emergent condition that needs your attention right now.