The alp is an enzyme that is mostly distributed in the liver, placenta, bones and other organs of the body, so the alp value will be affected by these. There are usually four reasons why this enzyme is high: 1. During pregnancy, because it is a special time, metabolism is generally faster making the liver more tasked and the load is increased making the liver function obstructed, it will make the alp value higher. However, it is generally normal to have high alp values during pregnancy and will return to normal later in pregnancy.2. Bone lesions, there is a lot of alp in the bones and once the bones are diseased the alp values will rise.3. Use of antibiotic drugs, sometimes these drugs are used to treat certain diseases. If the drug enters the liver to metabolize, the alp value will rise, but once the alp value is stopped, it will return to normal. 4, liver disease, if the alp value increases, we should check whether the patient is suffering from liver cancer, cirrhosis of the liver and other types of diseases, it is recommended to go to the hospital for detailed examination.