 Hi, I'm Dr. Magnus Jaraj Mansard, Consultant Liver Transplant Surgeon for the Manipal Group of Hospitals. Normally liver cancer occurs in a liver which is already damaged by some other cause. Usually either due to hepatitis infection or due to alcoholic liver disease or the other liver disease which is coming up now that is non-alcoholic liver disease. Liver cancer can also occur in normal liver but that is very rare. So usually a patient who is already afflicted by a liver disease, chronic hepatitis or cirrhosis they tend to develop liver cancer.