The causes of liver cirrhosis may be related to hepatitis virus, long-term heavy drinking, long-term cholestasis and medication, etc., which should be timely attention. 1. Hepatitis virus: the long-term persistence of hepatitis B and C viruses can cause sustained damage to liver cells, resulting in liver fibrosis, which may lead to cirrhosis if further sustained development. 2. Long-term heavy drinking: If patients drink alcohol for a long time, alcoholic fatty liver may exist in the body, without timely intervention, long-term development may lead to cirrhosis. 3. Long-term cholestasis: cholestasis is also an important cause of cirrhosis, which is generally divided into primary biliary cirrhosis and secondary biliary cirrhosis, and is usually related to abnormal immune function and schistosomiasis. 4. Drug factors: long-term use of drugs may cause accumulation of drug toxins, resulting in liver damage, which may cause cirrhosis. Cirrhosis may also be related to other causes, it is recommended to go to the hospital in time to improve the examination, under the guidance of professional physicians to clarify the cause of the disease, and give targeted treatment or therapy.