The full name of glutamine is glutamine transaminase, and its value of 50-70 is considered mildly elevated, and the possible causes include physiological factors and pathological factors. The enzyme is found mainly in liver cells, but also in cardiomyocytes and skeletal muscle cells. The normal value of ALT is less than 40 U/L. When liver cells become necrotic or inflamed, the ALT is released from the cells and enters the bloodstream. Glutaminase 50~70U/L is a mildly elevated phenomenon with common causes. 1. Physiological factors: it may be caused by physiological factors such as drinking, staying up late, exertion, after exercise, obesity, etc. It can be gradually returned to normal after adjustments such as abstinence from alcohol, rest and weight loss. 2. Pathological factors: such as non-alcoholic hepatitis, viral hepatitis, cholestatic hepatitis, pharmacological hepatitis and other diseases causing liver injury, the appearance of alanine aminotransferase elevation, which may be accompanied by abdominal distension, abdominal pain, nausea, loss of appetite and other gastrointestinal symptoms, the need to actively treat the primary disease, the treatment of the cause of the problem, timely intervention. It is recommended to go to a regular hospital for a complete examination of the liver to determine the cause of the disease and treat the cause in order to avoid delaying the condition.