The good or bad of the liver is carried out through laboratory tests, imaging tests and pathological tests, as follows: 1. Laboratory tests: first of all, blood tests are needed, such as routine blood tests, liver function, lipid four, liver fiber four, hepatitis B five, infection four, etc. Sometimes, tumor markers are also needed. Sometimes it is also necessary to check tumor markers, such as alpha-fetoprotein, carcinoembryonic antigen, glycan antigen 19-9, glycan antigen 12-5, etc. 2, imaging tests: including abdominal ultrasound, abdominal CT, abdominal MRI, etc., and sometimes it is necessary to carry out enhancement scanning or imaging.3, pathological examination: when the liver is found to have occupancy, it can be pathologically examined. Under the guidance of color ultrasound, puncture part of liver tissue and send it to pathological biopsy. If liver cancer cells are found in the tissue, it is considered as malignant tumor. During the examination patients should avoid drinking alcohol and don’t eat greasy food.