Until recently, the liver, pancreas, oesophagus, small digestive system, and colon have been the most common gastroenterological transplants. Because transplantation is a major medical surgery, the quiet must be monitored both during and after the procedure. The difficulties usually appear after the procedure, when the body begins to reject the joint or organ. Liver transplantation is a procedure that involves removing a diseased or damaged liver and replacing it with a full contemporary solid liver or a part of the liver from a healthy donor. People who have severe or chronic liver failure must get a liver transplant.