What causes cirrhosis?
Cirrhosis is caused by chronic (long-term) liver diseases that damage liver tissue. It can take many years for liver damage to lead to cirrhosis.
Chronic Alcoholism
Chronic alcoholism is one of the leading causes of cirrhosis in the United States. Drinking too much alcohol can cause the liver to swell, which over time can lead to cirrhosis. The amount of alcohol that causes cirrhosis is different for each person.
Chronic Viral Hepatitis
Chronic hepatitis C is the another leading cause of cirrhosis in the United States. Hepatitis C causes the liver to swell, which over time can lead to cirrhosis. About one in four people with chronic hepatitis C develop cirrhosis. Chronic hepatitis B and hepatitis D also can cause cirrhosis.
Nonalcoholic steatohepatitis (NASH)
Fat build up in the liver that is not caused by alcohol use, is called Non-Alcoholic Fatty Liver Disease (NAFLD), which can lead to nonalcoholic steatohepatitis (NASH), now called metabolic dysfunction associated steatohepatitis or MASH. NASH can cause the liver to swell and can lead to cirrhosis. People with NASH often have other health issues including diabetes, obesity, high cholesterol, coronary artery disease and poor eating habits.
Bile Duct Disease
Bile duct disease limits or stops bile from flowing to the small intestine. The bile backs up in the liver causing the liver to swell and can lead to cirrhosis. Two common bile duct diseases are primary sclerosing cholangitis and primary biliary cirrhosis.
Genetic diseases
Some genetic diseases can lead to cirrhosis. These diseases include Wilson disease, hemochromatosis, glycogen storage diseases, Alpha-1 antitrypsin deficiency, and autoimmune hepatitis.