Tumor inside the liver laboratory liver function may also be normal, need to be combined with the disease benign and malignant judgment. Tumors in the liver are divided into benign and malignant tumors. Usually, benign tumors include hepatic cavernous hemangioma, hepatic adenoma, misshapen tumor, fibroma and so on, and most of the patients have no abnormal liver function test results. Since benign liver tumors have a certain chance of malignant transformation, liver function may be abnormal after malignant transformation, which needs to be taken seriously. For malignant tumors of liver, it mostly refers to liver cancer. In the early stage of hepatocellular carcinoma, liver function may still be normal due to its limited damage to liver function. After gradual enlargement, liver function tests of liver cancer patients are abnormal at this time because cancer cells will stimulate or damage liver cells. Abnormal test results can be seen when liver cancer patients undergo other tests such as liver cancer marker test and liver puncture biopsy, of which liver puncture biopsy is a reliable method to confirm the diagnosis of liver cancer. For those who have tumors growing inside the liver, further detailed examination should be done to clarify the benign or malignant nature of the disease. Patients should also adjust their mindset, keep their body and mind happy, and actively cooperate with doctors for treatment and regular medical checkups.