Some patients, for various reasons, do not want to laboratory tests, some people are afraid that the test results are not ideal, increasing the burden of thought; some people are afraid of laboratory tests once too much blood, the body will be engaged in the “loss”; there are also some people think that hepatitis can not be good anyway, the test is not the same, take some medication on the line; in fact, these are incorrect, the lack of scientific basis, and do not recognize the importance of regular liver function tests. In fact, these are incorrect, lack of scientific basis, and do not recognize the importance of regular liver function tests. Liver function test can not only assist doctors to diagnose the disease, but also help to understand the severity of the disease and guide the use of medication. The result of each test can only reflect the situation at the time of the test, while the condition is constantly changing, so regular tests to dynamically observe the changes in liver function can better understand the condition, so as to achieve the correct use of medication. How often is the liver function test appropriate? Generally speaking, due to the rapid change of acute hepatitis, it is more appropriate to have a laboratory test once every two weeks, and the content of the laboratory test can be selected according to the condition, such as liver function, blood routine, blood bilirubin and so on. During the recovery period, jaundice basically subsides and transaminases resolve to normal, the time interval between tests can be extended to once a month until liver function is normal for three consecutive times. In case of hepatitis B, C, etc., it is better to review the tests every half a year within two years after the clinical recovery and the viral index turns negative. In the stable stage of chronic hepatitis and cirrhosis, review every one and a half to three months, and in the active stage, laboratory test every half to one month. Severe hepatitis and advanced cirrhosis combined with ascites or gastrointestinal bleeding, critical condition, according to the specific circumstances of the laboratory tests at any time, to guide the treatment. For the current existence of a large number of asymptomatic hepatitis B virus carriers, it is best to every quarter to half a year a comprehensive examination of liver function, including ALT, albumin/globulin, viral hepatitis markers (hepatitis B two-half, HBV-DNA; hepatitis C anti-HCV, HCV-RNA) and ultrasound, play a role in detecting the problem of early discovery, early treatment, and one side of the side of the time to miss the opportunity for treatment. If in the treatment period, should be based on the specific circumstances, shorten the laboratory examination time. Often see some asymptomatic heterosexual hepatitis virus carriers, many times serum transaminases are normal, no obvious symptoms, did not pay attention to, and the result is often in a few years after the development of cirrhosis was found, it is too late to regret. The above is a generalization, but the disease conditions are so varied that no generalization can be made, and it is still necessary to go to the specialist clinic regularly and ask the doctor to make a decision according to the specific situation.