The most typical manifestation of fatty liver on CT imaging is diffuse density reduction, which means that the CT value of the whole liver is significantly lower than that of a normal liver on CT. Fatty liver is a disease caused by abnormal fat deposition on the liver due to various reasons, which is mainly manifested by symptoms such as fatigue, pain and discomfort in the right upper abdomen, loss of appetite, abdominal distension and vomiting, etc., and may also cause serious complications such as severe hepatitis and cirrhosis, which need to be treated in time. Fatty liver is mainly manifested as diffuse density reduction on CT, that is, the liver of patients with fatty liver is diffusely darkened, suggesting that there are more fat deposits in the liver, so that fatty liver shows diffuse low density on CT, and the density of liver is lower than that of the spleen at the same level, and it can be diagnosed as fatty liver when other inflammatory diseases of the liver are excluded. If the above uncomfortable symptoms occur, you should go to the hospital in time for standardized treatment to prevent the development of the disease.