Just because there are no abnormalities such as pain or discomfort does not mean you can feel at ease. This is because there are diseases that progress slowly without any significant pain or noticeable symptoms and are discovered late during health checkups. A representative example is fatty liver. Fatty liver has few symptoms in the early stages, but if left untreated, caution is needed as it can lead to cirrhosis and liver cancer beyond steatohepatitis. According to the medical community on the 30th, fatty liver literally means a condition in which excessive fat is accumulated in liver cells. A certain amount of fat exists even in a normal liver, but if fat accounts for more than 5% of the liver weight, fatty liver is diagnosed. The fat accumulated in the liver is mainly neutral fat (triglyceride), which begins to accumulate inside liver cells when fat metabolism does not occur smoothly. The representative causes of fatty liver are largely considered to be excessive drinking, obesity, diabetes, and hyperlipidemia. Depending on the cause, it is divided into alcoholic fatty liver, which is directly caused by alcohol, and non-alcoholic fatty liver, which occurs unrelated to drinking. Many people think of fatty liver as a disease related to alcohol, but this is not the case.