Alanine aminotransferase 86.7U/L, can pay attention to rest, liver preservation therapy, find the cause of symptomatic treatment. Alanine aminotransferase is glutamic acid aminotransferase (ALT), its normal value range varies slightly according to different testing units, reagent variability and other dietary influences, generally between 9-50U/L, 86.7U/L is an abnormal result, need to identify the cause of the symptomatic treatment. 1. Pay attention to rest: Physiological increase of alanine aminotransferase can be seen in cases of staying up late, drinking alcohol, strenuous activities or eating too much high-protein food, which increase the burden on the liver and lead to its elevation. After removing the triggers and taking sufficient rest, the normal level can be restored. 2. Hepatoprotective treatment: Liver medications such as hepatoprotective tablets and biphenyl dibenzoate pills can be taken under the guidance of hepatologists to lower enzymes and protect the liver. 3. Finding the cause and treating the symptoms: it should be combined with liver ultrasound, hepatitis B and C measurement, glutamic transaminase, total protein and other comprehensive judgment. If it is caused by drinking alcohol, quit drinking alcohol; if it is caused by hepatitis B virus or hepatitis C virus, effective antiviral treatment should be carried out; if it is caused by cirrhosis, liver cancer, etc., surgery or conservative treatment can be taken according to the specific situation, on top of which, liver-protecting drugs should be used for the treatment, to reduce the damage of the liver and lower the level of aminotransferase. Usually, people should pay attention to rest, light diet, do not eat greasy and stimulating food, do not stay up late and smoke and drink, and find that hepatitis B or C and other hepatitis, should be timely treatment, and regular review.