Liver surgery involves procedures to treat liver diseases, tumors, or injuries. The most common types include liver resection, where a portion of the liver is removed, and liver transplantation, where a diseased liver is replaced with a healthy one from a donor. These surgeries are performed by specialized surgeons known as hepatobiliary surgeons. Before surgery, patients undergo various tests to assess liver function and overall health. Recovery can vary, but the liver has a remarkable ability to regenerate, allowing many patients to return to normal activities within weeks. Post-operative care is crucial for monitoring and managing any complications.