What causes cirrhosis?

Most common alcohol: Most common cause of cirrhosis is alcohol. Other causes included virsus such as hepatitis. There is also non alcoholic casuse aka nash. Other causes include billiary cirrhosis where bile backs up in the liver. Overall the liver eventually becomes fibrotic and no longer functions. This in itself leads to many other problems.

Lots of things: Alcohol abuse, though most heavy drinkers don't get it. Hepatitis b &/or c, iron overload / hemochromatosis, autoimmune hepatitis, wilson's (don't miss this), some others. In the usa we're seeing it in young adults just from lack of exercise. Hope you continue to live clean & stay fit.