The most common cause of fatty liver identified in most cases is alcohol use disorder and heavy drinking. Fatty liver typically has no associated symptoms. However, research has shown has shown that about 20 percent of people with fatty liver inflammation progress to worse conditions. If this occurs, you may experience fatigue or abdominal discomfort. Your liver may become slightly enlarged, which your doctor may be able to detect during a physical exam. It’s believed that the excess fat in the liver, along with certain medical conditions, increases inflammation. If your liver becomes inflamed, you may have symptoms such as: a poor appetite weight loss abdominal pain physical weakness fatigue confusion If fatty liver progresses to cirrhosis and liver failure, symptoms can include: an enlarging, fluid-filled abdomen jaundice of the skin and eyes confusion abnormal bleeding