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A liver transplant is an operation to remove a diseased or damaged liver (a liver that cannot perform its normal functions and is likely to fail) from the body and replace it with a healthy one.
The liver can become damaged as a result of illness, infection or alcohol which causes the liver to become scarred, technically known as cirrhosis.
The most common causes of liver damage and cirrhosis are:
Once cirrhosis reaches a certain level, the liver gradually loses all of its functions. This is known as liver failure, or end-stage liver disease.
The only hope for the long-term survival of a person with liver failure is a liver transplant.