Xanthosis is a medical term that refers to a condition where the skin or mucous membranes turn yellow due to the accumulation of excessive amounts of yellow or orange pigment in the body. This condition can be caused by a variety of factors, such as liver disease, alcoholism, certain medications, or genetic disorders. Other synonyms that may be used to refer to xanthosis include hypercarotenemia, carotenoderma, jaundice, and yellow skin. It is important to note that xanthosis should be diagnosed and treated promptly by a medical professional to prevent any potential complications or underlying health issues.