Liver echoes that are dense and bright in the anterior segment and markedly attenuated in the posterior segment is an imaging term that usually refers to an ultrasound sonogram suggesting the possibility of fatty liver. When a patient has a fatty liver, there is an excessive accumulation of fat in the liver, and the ultrasound beam from the ultrasound probe encounters fat droplets infiltrating the liver tissue and hepatocytes and folds back, creating a dense, bright sonographic presentation with echo attenuation in its posterior portion. Common causes of fatty liver include diabetes mellitus, prolonged high-fat diet, and year-round alcohol consumption. Fatty liver can be categorized into mild, moderate and severe, and can be reversed by timely treatment after discovery. In our daily life, we should pay attention to exercise, healthy diet, good work and rest, and less staying up late.