Greasiness is most likely due to a large number of destroyed liver cells and reduced bile secretion, which affects the digestion of fats and results in greasiness. Alternatively, stomach disorders may also cause a loss of appetite due to indigestion, which may also cause greasiness. If this is the case, you need to pay more attention to your diet, eat a light diet, and eat more vegetables and fruits rich in vitamins. In addition, eat more fiber-rich coarse grains and so on, do not eat spicy, stimulating, greasy food to stimulate the stomach. Without relief of symptoms, you can take omeprazole, morpholine, liver-clearing and cholagogic oral solution and other drugs for treatment. If the greasiness is caused by liver disease, if there is viral hepatitis or other inflammatory diseases will appear greasiness, if this is the case, it is best to go to the hospital for a comprehensive examination and symptomatic treatment.