Steatosis is the accumulation of fat within tissues. The liver is most commonly affected. Fat accumulation in the liver can lead to liver disease. A healthy liver contains some fat, but when fat makes up more than 5 to 10 of the liver's weight, doctors call it fatty liver or steatosis. This may indicate the development of Non-Alcoholic Fatty Liver Disease (NAFLD). NAFLD includes a range of liver diseases that occur in people who drink little or no alcohol. A more serious form is Nonalcoholic Steatohepatitis (NASH). NASH can cause liver swelling and damage. Nonalcoholic Steatohepatitis (NASH) is liver inflammation and damage caused by the accumulation of fat in the liver. It is part of a group of diseases called non-alcoholic fatty liver disease. It is sometimes called fatty liver. Many people have fat in their liver, but most of them have no symptoms or serious problems. However, in some people, fat causes inflammation and damages liver cells. Due to damage, the liver will not function normally.
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