Jaundice: Caused by a build up of bile in the body, causing yellowing in the eyes, skin, and urine. Generally a result of hepatitis (liver inflammation).
Cirrhosis: Scarring of the liver, caused by traumatic injury, viral infection, and heavy drug/alcohol use. It destroys healthy liver tissue.
Diabetes: An inability for the liver to produce insulin, forcing all ingested sugars to be burnt immediately. Usually causes weight problems.