For what are the common causes of cirrhosis of the liver? I. Viral hepatitis leads to: the most common in our country is hepatitis B and C virus infection leading to damage to liver cells, and as the disease continues to progress, fibrous tissue proliferation and liver pseudobullet formation, leading to narrowing of the liver sinusoids and the formation of portal hypertension. Second, chronic alcoholism: the cause of cirrhosis in Western countries is often seen in patients with long-term alcoholism: the direct damage to liver cells caused by alcohol. Third, cirrhosis due to fatty liver: it can develop into non-alcoholic cirrhosis because of long-term repeated inflammatory stimulation of excess fat in the liver;. Fourth, cirrhosis caused by primary sclerosing cholangitis: due to the prolonged stagnation of bile in the liver, resulting in continuous damage to liver cells and eventually cirrhosis. V. Schistosomiasis cirrhosis: due to schistosomes in the portal vein vascular development blocking the portal vein leading to portal hypertension, causing hepatocyte malnutrition and liver lobule atrophy induced cirrhosis. Sixth, drugs or toxins cause cirrhosis: common industrial raw materials such as carbon tetrachloride, phosphorus, mercury chronic poisoning, as well as patients taking long-term isoniazid, methotrexate and other hepatotoxic drugs, can cause cirrhosis. These are the common clinical causes of cirrhosis, in fact, cirrhosis is not terrible, the key is to identify the cause in a timely manner, regular review of liver function, liver function abnormalities are found, timely liver support treatment. Many patients with cirrhosis can greatly delay the progress of cirrhosis by regulating their diet, actively and regularly reviewing liver protection and antiviral treatment, and maintaining a good state of mind.