Liver cancer is divided into primary liver cancer and secondary liver cancer. The symptoms of primary liver cancer are not typical at the early stage of the disease process, while the symptoms of secondary liver cancer at the early stage are mainly those of the primary focus. In the early stage of liver cancer, when the tumor is small, most patients have no typical symptoms; a few of them can have symptoms related to chronic underlying liver disease such as epigastric stuffiness, abdominal pain, weakness and loss of appetite. Once typical symptoms appear, the disease has mostly entered the middle or late stage. The common symptom is vague pain in the right upper abdomen, which is mainly caused by the rapid growth of the tumor on the liver, which increases the tension of the liver pericardium, or the tumor has involved the liver pericardium, and the site of the pain is in the right side of the rib cage or below the raphe, which is intermittent or persistent dull pain at the beginning, and the symptoms are relatively mild, so the early stage of liver cancer is easily ignored. Moreover, in secondary hepatocellular carcinoma, when the tumor is small, it is usually asymptomatic and is often detected only during imaging examination. When the tumor increases in size, discomfort or hidden pain in upper abdomen or liver area may appear. If the above symptoms occur, then you need to go to the hospital for relevant examinations, such as liver ultrasound and liver function tests, to see the condition of the liver and rule out the possibility of liver cancer.