Pregnant women with high alkaline phosphatase, first consider physiological reasons, such as fetal synthesis and release of a certain amount of alkaline phosphatase, and secondly, consider that it may be caused by liver and gallbladder, bone disease: causes and treatment of a. Physiological reasons 1, fetus: fetal growth and development is relatively fast, the fetal skeletal system to the mother to release a certain amount of alkaline phosphatase, so that alkaline phosphatase is elevated; and the placenta will also synthesize and release a certain amount of alkaline phosphatase; 2, pregnant women: pregnant women eat a lot of fat-rich food during pregnancy, weight gain, resulting in elevated alkaline phosphatase. All of the above are normal physiological phenomena, generally will not have adverse effects on the fetus, it is recommended to try to control the intake of high-fat or high cholesterol food. If alkaline phosphatase is persistently elevated, it may be caused by liver, bile and bone diseases, such as obstructive jaundice, cholestatic hepatitis, osteochondrosis, osteoporosis, etc. Pregnant women need to go to the hospital for examination and treatment according to the examination results. Pregnant women need to have regular maternity checkups, supplement with high-protein, high-calcium foods such as milk, lean meat, eggs, etc.; get more sunlight; strengthen exercise to enhance physical fitness; and maintain a positive and optimistic attitude.