Early tumor size of liver malignant tumors can be >2 cm or <2 cm, which also needs to be judged in combination with lymph node metastasis and distant metastasis. Hepatocellular carcinoma is a common malignant tumor of the digestive system, and the disease can be caused by hepatitis virus, heredity, alcohol and other factors. According to the primary tumor, the degree of lymph node metastasis and whether distant metastasis occurs, it can be divided into four stages. For early stage tumors can be divided into two subtypes, 1a and 1b. Stage 1a can be a single tumor <2 cm or smaller that has not grown into blood vessels; has not spread to nearby lymph nodes; and has no distant metastasis. stage 1b is a single tumor larger than 2 cm that has not grown into blood vessels; has no lymph node metastasis; and has no distant metastasis.