There are many causes of loss of appetite and nausea after liver transplantation, such as the seriousness of the condition prior to transplantation, medications, and prolonged periods of serious illness. 1. Lack of appetite and nausea after liver transplantation may be due to the patient’s very serious condition before the transplant and the need for a recovery process after the operation, including nausea after the operation, which will take a period of time to be relieved. 2. Nausea and appetite after liver transplantation is usually due to taking a large number of anti-infective and anti-rejection drugs after the operation, the side effects of the drugs or the use of a large number of anti-infective drugs make the intestinal flora imbalance, which leads to nausea and vomiting phenomenon. 3. The lack of appetite after liver transplantation is considered to be related to the incomplete recovery of liver function. The liver is a powerful organ of the digestive system, which can secrete digestion-related enzymes and has a strong metabolizing, synthesizing, and detoxifying ability. If the liver function is not fully restored, it will affect the patient’s digestive function. No appetite and nausea after liver transplantation need to go to the hospital in time, under the guidance of medical advice for standardized treatment.