For liver function tests, the normal value of glutamate transaminase should be below 40 U/L, and if it is slightly elevated, it will not cause any major damage. It is generally considered that when the glutathione transaminase is more than twice the normal value, it should be taken seriously and liver-protective treatment should be given. When GLTA is more than twice the normal value, it means that the liver is damaged. There are many causes of liver damage, usually viral hepatitis drugs, drug-related hepatitis, alcoholic hepatitis, autoimmune hepatitis, toxic hepatitis, etc., all of which can cause liver damage and cause elevated ghrelin. In addition to elevated ALT, it can also cause elevated glutamic oxalyl aminotransferase, elevated glutamyl transpeptidase, elevated bilirubin, and decreased albumin. Severe liver damage can lead to liver necrosis, which is life-threatening, so liver damage should be treated promptly with liver protection.