Liver cancer smaller than 2cm is called microscopic liver cancer, which can have no symptoms in the early stage, and in the late stage, it can show symptoms such as pain in liver area, abdominal distension, nausea, vomiting and so on. Hepatocellular carcinoma is a malignant tumor of liver, less than 2cm is called microscopic hepatocellular carcinoma, in the early stage of the disease, it usually does not have any symptom, and in the middle and late stage, it will show more manifestations. In the middle and late stages, patients may have pain in the liver area, mostly hidden pain or distension in the right upper abdomen or middle and upper abdomen, which is aggravated after exertion or at night. Systemic and digestive symptoms, such as decreased appetite, nausea, vomiting, abdominal distension, etc., may also be manifested in the late stage, and some patients may have fever. In addition, some liver cancer patients may also have some paraneoplastic symptoms, such as hypoglycemia, hypercalcemia and hypercholesterolemia. If there is any physical discomfort, please consult a doctor in time.