Aunt Liu is 51 years old. She doesn't smoke or drink. A few days ago, Aunt Liu got the physical examination report she had just done, but she was told that she had fatty liver and a slight increase in transaminase. Aunt Liu is very puzzled. She is 168 cm tall and weighs 65 kg. She is neither fat nor drinking. Her friends envy her a good figure. How can she get fatty liver? Aren't fat people getting fatty liver? With these questions, Aunt Liu came to the hospital for review. After abdominal ultrasound and noninvasive liver hardness + fat content determination, the doctor told her that she did suffer from fatty liver. What's going on? "Lean fatty liver" is not a minority With the improvement of living standards and lifestyle changes, the incidence rate of fatty liver has been increasing year by year. It has become the main cause of chronic liver disease, even cirrhosis and liver cancer in China. People often think that fatty liver is something that only fat people have. Indeed, fatty liver is closely related to obesity, and obese people are more likely to be complicated with fatty liver. But clinically, more and more patients with fatty liver look good, which is the so-called "fatty liver" or "non obese fatty liver". Generally speaking, we measure obesity by body mass index. The latest data show that in the population with normal body mass index, on average, one in six people has fatty liver, which can not be underestimated. Moreover, in fact, the degree of lesions in these patients with fatty liver is not light. Some may also have fatty hepatitis, resulting in the increase of transaminase, and even develop into liver fibrosis, liver cirrhosis and liver cancer. Therefore, we must pay attention to it. How are thin people targeted by fatty liver? In fact, "thin" is relative. It is one-sided to measure fat and thin only by body mass index. For example, Aunt Liu, although her body mass index is normal, her waist circumference has increased to 85 cm, and there has been obvious abdominal fat accumulation in recent year, and her body mass index can not accurately reflect the fat distribution. In other words, although some people have normal body mass index, they have abnormal fat distribution, increased abdominal and visceral fat content, and are also prone to fatty liver. Secondly, poor dietary structure is an important culprit of fatty liver. High fructose and high cholesterol diet, such as long-term consumption of sweet drinks and fried food, is very easy to cause fatty liver. Diabetes and hyperlipidemia also increase the risk of fatty liver disease. In addition, fatty liver in thin people may also be related to the carrying of some susceptibility genes, intestinal micro ecological environment and the reduction of muscle content caused by lack of exercise. How does thin person suffer from fatty liver to do? First of all, we should change bad living habits, increase exercise, adjust the diet, avoid eating too many sweets, especially foods and drinks with high fructose content, and don't drink alcohol. Although the weight of these patients is relatively normal, they can still improve fatty liver by reducing weight. At present, there is no specific drug for the treatment of fatty liver. While improving the lifestyle, the disease should be monitored regularly. It is generally recommended to go to the hospital every six months to recheck liver and kidney function, blood glucose, blood lipid, abdominal ultrasound, etc. among them, noninvasive liver hardness + fat content measurement can easily and simply monitor the liver. If the condition is found to be aggravated, liver tissue puncture can be performed if necessary to more accurately evaluate the severity of fatty liver. At the same time, we should actively treat the combined metabolic diseases, such as hypertension, diabetes and so on. (outlook new era)