Reduced fatty liver glutamine aminotransferase is an indication of improvement. Fatty liver can be clinically caused by long-term heavy drinking, obesity, drugs and complications, etc. It is mainly due to the excessive accumulation of fat in the liver cells that affects the function of the liver, and the transaminases are abnormally elevated. Liver function can be improved by liver-protecting drugs, diet control, weight loss or alcohol prohibition, etc. When liver function is improved, fatty liver will be controlled gradually, so the decrease of alanine aminotransferase suggests that the condition has begun to improve. When patients with fatty liver have elevated aminotransferase, they need to actively cooperate with physicians to avoid aggravation of the condition or complication of cirrhosis and other conditions.