When the transaminase reaches 90U/L, there may be liver tissue damage, after about 1 week of active treatment, generally can be reduced to normal values. Transaminases are enzymes produced in the liver cells. Abnormal elevation of transaminases may be seen in hepatitis, cirrhosis and other diseases that damage the liver cells, you can take diammonium glycyrrhizinate, biphenyldiphenyl ester and other liver-protecting medications to regulate the liver on a regular basis and the value of transaminases may be reduced to less than 40U/L after 1 week. If the aminotransferase reaches 90U/L, we must pay attention to a light diet, and avoid staying up late at night and overwork, we suggest that the patient consult a doctor in time to find out the cause, and then carry out targeted drug treatment, usually can be restored to normal, and later on, we should also regularly review the changes in aminotransferase, to prevent the reoccurrence of abnormally high situations.