Aspartate aminotransferase refers to aspartate aminotransferase, also known as ghrelin aminotransferase. Its elevation can be caused by physiological and drug factors, but also can be seen in fatty liver, cirrhosis, heart attack and other disease states; if physiological and drug factors caused by avoidance of triggers generally do not have a greater harm, disease factors caused by the liver may aggravate the damage to the liver, heart. 1. Physiological and drug factors: strenuous exercise, drinking, eating and other physiological conditions can cause transient elevation of AST, which can be restored to normal after the elimination of the above factors; AST can be elevated after taking methimazole, isoniazid, etc., which can be restored after stopping the medication; the cases caused by the above conditions are generally not harmful. 2. Disease factors: fatty liver, cirrhosis, heart attack and other disease states can cause elevated AST, if not actively treated may further damage the liver function or heart function, heart attack patients have the possibility of life-threatening. After eliminating physiological factors, it is recommended to go to the hospital for medical treatment.