There are more characteristics of undifferentiated liver cancer, mainly including rapid tumor growth, easy to metastasize or spread, and higher degree of malignancy. 1. Excessive growth rate of tumor: the growth rate of tumor in undifferentiated liver cancer patients is relatively fast, and if it is only a small lump at the beginning and the control effect is not good, the lump may gradually increase and easily produce a sense of oppression. 2. Easy to metastasize and spread: undifferentiated liver cancer is more serious and the cancer cells are not well controlled, so it is very easy to metastasize or spread to other parts of the body. 3. Higher degree of malignancy: once undifferentiated liver cancer is diagnosed, it usually indicates that the condition is more serious and the tumor is highly malignant. It has poor control effect and is more threatening to patients’ life. If liver cancer is suspected or diagnosed, it is recommended to go to regular hospitals to evaluate the condition and follow the doctor’s instructions to cooperate with the treatment.