High glutamyl transpeptidase may cause dizziness. 1. Serum glutamyl transpeptidase mainly comes from the hepatobiliary system, where it is mainly distributed in the liver on the capillary bile duct side of hepatocytes and throughout the biliary system. Its high level may be caused by physiological factors such as staying up late, alcoholism, overwork, etc. It may also be caused by hepatitis, cirrhosis, bile duct stones, hepatocellular carcinoma and other hepatobiliary diseases. 2. If the high GGT is caused by physiological factors such as staying up late, alcoholism, overwork, etc., the patient may have dizziness at the same time, but usually it will be relieved gradually after improving the living habits, and will not be accompanied by other obvious discomfort. 3. In case of high GATP due to pathological factors such as liver and gallbladder diseases, patients may feel dizziness and fatigue, accompanied by loss of appetite, emaciation, diarrhea, liver palms, spider nevi, jaundice, splenomegaly, ascites, bleeding, etc. This should be taken seriously. This is when attention needs to be paid. If the patient has high glutamyl transpeptidase and dizziness for a long time or repeatedly, it is recommended to consult a doctor in time to identify the cause of the disease and carry out targeted treatment to avoid delaying the condition.