Glutathione is an essential enzyme that is present in various cells of the body and is responsible for intervening in the transamination catalytic process between glutamate and pyruvate in the human body. Pyruvate is an important intermediate in the metabolism of glucose in all living cells and in the interconversion of substances in living organisms. Glutathione is mainly found in the liver and heart, especially in the liver, where it is one of the most sensitive indicators of the normal functioning of the liver. When the liver is damaged glutathione will become very active, even if only one percent of liver cells are damaged, the index of glutathione will rise, and during the physical examination will be the fastest and most intuitive way to determine whether the examinee is suffering from hepatitis and other liver diseases by observing the index of glutathione on the physical examination sheet.