There is actually no difference between intrahepatic lipid deposition and fatty liver; intrahepatic lipid deposition is a pathologic description, and fatty liver is the name of the disease, the essence of which is pathological fat deposition in the liver. When the fat metabolism of the liver is abnormal, the lipid balance is disrupted, and fat is deposited in the liver cells, fatty liver will be formed. The causes of fatty liver include long-term alcohol consumption, endocrine metabolism abnormality, over-nutrition, drug and poison stimulation, etc. Most patients have no obvious symptoms, while a few patients may have symptoms such as fatigue, mild discomfort in the right upper abdomen and vague pain in the liver area. There is no difference between internal fat deposition and fatty liver, the essence of the two is the same, it is recommended that the patient consult a doctor in a timely manner for examination, to clarify the condition of the targeted treatment, pay attention to weight loss in life, to light diet, eat more vegetables and fruits, drink more water, avoid eating too greasy and spicy food, regular review, and so on.