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Fatty liver disease, also known as hepatic steatosis, is a condition characterized by the accumulation of fat in the liver. It is a common liver disorder and can be caused by various factors, including alcohol consumption, obesity, diabetes, high cholesterol, and certain medications. There are two main types of fatty liver disease: Non-alcoholic fatty liver disease (NAFLD): This is the most common form of fatty liver disease and occurs in individuals who do not consume excessive alcohol. NAFLD is often associated with obesity, insulin resistance, type 2 diabetes, high blood pressure, and high cholesterol levels. Alcoholic fatty liver disease (AFLD): AFLD is caused by excessive alcohol consumption over a prolonged period. Alcohol is toxic to liver cells and can lead to inflammation and fat accumulation in the liver. If alcohol consumption continues, it can progress to more severe forms of liver disease, such as alcoholic hepatitis or cirrhosis. Symptoms of fatty liver disease may be absent or mild in the early stages. However, as the condition progresses, some people may experience fatigue, weakness, abdominal discomfort, and enlargement of the liver. If left untreated, fatty liver disease can lead to complications such as liver inflammation (steatohepatitis), fibrosis, cirrhosis, and an increased risk of liver cancer. Diagnosis of fatty liver disease involves a combination of medical history assessment, physical examination, blood tests (to assess liver function and rule out other causes), and imaging studies such as ultrasound, CT scan, or MRI. In some cases, a liver biopsy may be performed to assess the severity of liver damage.