ULN in medicine is the abbreviation of upper limit of normal value. In different medical conditions, there is a certain reference value upper limit, as long as it is within the upper limit of normal value of this reference value, all belong to normal, for example: ALT>10*ULN, which means that the value of alanine aminotransferase is greater than 10 times the upper limit of normal value. Check the items more than this upper limit, belong to an abnormal situation, do not rule out the existence of disease, you need to according to their own symptoms, detailed examination, consult the doctor, develop appropriate treatment programs. If it does not exceed this upper limit and is within the range, it is generally considered to be no abnormality, but those who have symptoms must be rechecked on a regular basis. After doing the examination, show the checklist to the doctor and make a clear diagnosis under the doctor’s guidance.