Which physical symptom is commonly associated with chronic alcohol use disorder, indicating cirrhosis of the liver?

The correct choice is the presence of yellowish skin, commonly known as jaundice, which is a key indicator of liver dysfunction, particularly cirrhosis resulting from chronic alcohol use disorder. In this condition, the liver's ability to process bilirubin, a byproduct of red blood cell breakdown, is impaired. When the liver is damaged, bilirubin accumulates in the bloodstream, resulting in a yellowing of the skin and the eyes.

Other symptoms associated with cirrhosis may include a distended abdomen due to fluid accumulation (ascites), but this is not as definitive a sign as jaundice. Coughing up blood is more commonly related to other complications, such as esophageal varices, and a butterfly-shaped rash is associated with conditions like lupus rather than liver disorders. Therefore, while other symptoms may present in individuals with liver issues, the specific manifestation of yellowish skin is a direct and distinguishing symptom linked to impaired liver function due to chronic alcohol misuse.