Clinical staging cannot be determined solely on the basis of liver cancer 7 cm, stage I, II, III and IV are all possible. Hepatocellular carcinoma is a type of disease in which malignant tumor foci originate in the liver. According to the Hepatocellular Carcinoma Diagnostic and Treatment Guidelines, it is not possible to judge which stage the disease is in solely on the basis of the tumor diameter in the body of a liver cancer patient, because the requirement of a mere tumor diameter of 7 cm is in line with the liver cancers of Stage Ib, Stage IIa, Stage IIb, Stage IIIa, Stage IIIb and Stage IV. The specific clinical staging of liver cancer also needs to be combined with liver function, number of tumors, presence of lymph node metastasis, distant organ metastasis and other comprehensive analysis. After liver cancer patients are diagnosed by examination, they should choose appropriate treatment plan according to the clinical stage, and the later the stage is, the worse the prognosis is. Therefore, individuals should pay attention to the early diagnosis and treatment of liver cancer, and consult doctors in time when they feel unwell.