In cases of infants with yellow colouration, both the sclerae and the skin should be examined. The top priority is to rule out conjugated hyperbilirubinaemia, which may be a symptom of biliary atresia. Children with this condition will first develop yellow sclerae, and will have jaundice that continues beyond the first two weeks of life. Although discoloured stools are a classic sign of biliary atresia, they are not always present. Children over two weeks of age with yellow skin should therefore be assessed immediately, regardless of the colour of the stool.