Bile duct enzymes generally refer to glutamyl transpeptidase and alkaline phosphatase, and are usually used to indicate bile duct injury, cholestasis, and other liver injuries. Glutamyl transpeptidase and alkaline phosphatase are found mainly in liver cells. Obstruction of the bile ducts and poor drainage of bile, which sludges at the bile ducts, can lead to elevated glutamyl transpeptidase and alkaline phosphatase in the blood. Viral hepatitis and alcoholic liver can also cause damage to the capillary bile ducts in the liver and elevated bile duct enzymes. The degree and type of hepatic impairment can be determined clinically by testing for bile duct enzymes. If elevated bile duct enzymes are accompanied by symptoms such as abdominal pain, nausea and vomiting, jaundice, and poor mental status, it is necessary to complete the relevant examinations, make a clear diagnosis, and take active treatment under the guidance of the doctor, so as to avoid aggravating the symptoms, which will affect your health.