The tests to be done for the prevention of liver cancer are mainly based on blood markers, imaging tests, and of course the prevailing indicator for the prevention or fight against hepatitis is the blood marker AFP, or alpha-fetoprotein. If the indicator is above 400 for one month or above 800 for two weeks, it is certain that there is a risk of liver cancer, but try to combine it with abnormalities in imaging tests or a history of liver disease, such as an ultrasound or a CT scan that shows a space-occupying lesion in the liver or metastatic lesions. In addition, it can also be combined with the liver function tests of alkaline phosphatase, hepatitis B surface antigen, and the degree of cirrhosis to make a comprehensive analysis, so what kind of tests should be done to prevent liver cancer is mainly the above.