The normal range for alkaline phosphatase is 40 to 110 U/L, and an alkaline phosphatase value of 207 U/L indicates the presence of a bone or hepatobiliary system disorder that is more serious. Alkaline phosphatase is an important criterion for diagnosing diseases of the skeletal and hepatobiliary systems. When alkaline phosphatase is elevated, it often indicates the presence of skeletal or hepatobiliary system diseases. Examples include rickets, achondroplasia, malignant tumors of the bones, or bone metastases from other malignant tumors, or chronic hepatitis, cirrhosis, or extrahepatic obstructive disease. Elevated alkaline phosphatase may also be physiologic, such as in women during pregnancy, in young people during growth spurts, or after eating foods high in fat, but the magnitude of physiologic alkaline phosphatase elevation is often small. When alkaline phosphatase is elevated, it is necessary to go to the hospital in time for a systematic and comprehensive examination to clarify the cause of the elevated alkaline phosphatase and then carry out targeted treatment.