脂肪肝是指由于各种原因引起的肝细胞内脂肪堆积过多的病变。它已成为仅次于病毒性肝炎的第二大肝病,其临床表现,轻者可以没有病症,重者则病情凶猛。一般而言,脂肪肝属可逆性疾病,体检时很易查出,早期诊断并及时治疗可恢复正常。临床上一般通过B超检查确诊。其类型按诱因大致分为营养过剩型脂肪肝、酒精性脂肪肝、肝炎后 Fatty liver is due to a variety of reasons caused by excessive accumulation of fatty liver cells lesions. It has become the second largest liver disease after viral hepatitis, its clinical manifestations, the light can have no symptoms, severe cases are fierce. In general, fatty liver is a reversible disease, physical examination is easy to detect, early diagnosis and timely treatment can return to normal. Clinically confirmed by B-ultrasound. According to the type of inducement can be divided into nutrient-rich fatty liver, alcoholic fatty liver, hepatitis