Elevated serum ghrelin suggests liver function damage, what is caused by the disease mainly includes the following aspects: 1, viral hepatitis, common in hepatitis A, hepatitis E, hepatitis B, hepatitis C, etc., need to check the hepatitis series to clarify the diagnosis; 2, drug liver damage, such as eating some drugs, after the kidney metabolism leads to liver function damage; 3, autoimmune liver disease, need to check the liver antigen antibody profile to clarify the 4, fatty liver, obese patients are easy to combine fatty liver, can lead to liver function damage; 5, alcoholic hepatitis, long-term heavy drinking patients can appear liver damage, resulting in increased glutathione transaminase, if liver damage is recommended to go to the hospital for a clear diagnosis.