Which is a common symptom of jaundice?

Jaundice is typically characterized by a yellowing of the skin and the sclera (the whites of the eyes). This yellow discoloration occurs due to the accumulation of bilirubin, a substance produced during the breakdown of red blood cells. When the liver is unable to process bilirubin effectively, it increases in the bloodstream and leads to the yellow coloration.

While redness of the skin can indicate various conditions, it is not associated with jaundice. Swelling of the limbs may point to a variety of health issues, such as cardiovascular problems or edema, but again does not relate to jaundice. White patches on the skin could signify conditions like vitiligo or fungal infections, none of which correlate with the symptoms of jaundice. Thus, the correct answer reflects the primary manifestation of jaundice, which is the evident yellowing of the skin.