The correct name for alkaline carbonase is alkaline phosphatase, and its elevation can be seen in normal physiological conditions, liver and gallbladder diseases, bone diseases and others. 1. Normal physiological conditions: e.g. children during growth and development, late pregnancy, etc. can cause high alkaline phosphatase. 2. Hepatobiliary diseases: such as obstructive jaundice, intrahepatic cholestasis, alcoholic cirrhosis, viral hepatitis, infectious mononucleosis, etc. can cause high alkaline phosphatase. 3. Bone diseases: such as fibrous osteitis, osteosarcoma, rickets, osteochondrosis, bone metastatic cancer, etc., can also cause high alkaline phosphatase. 4. Others: such as heavy metal poisoning, severe anemia, malnutrition, gastric and duodenal injury, colonic ulcer, etc., can also cause high alkaline phosphatase. There are many other causes of high alkaline phosphatase, which should be emphasized, and timely consultation should be made to identify the cause of the disease and follow the doctor’s instructions for further treatment or therapy.