Ki67 result of 10% cannot assess the severity of the disease alone, Ki67 result of 10% indicates that the patient’s cancer cell proliferation activity is low,, and also needs to be evaluated in conjunction with the clinical tumor. Ki67 is a protein encoded by the MKi67 gene, and its value (1%~100%) reflects the proliferative activity of the patient’s cancer cells, the higher the value, the higher the activity.There is no normal range for Ki67, and the value is different for each patient. However, Ki67 may be altered by drug therapy, so Ki67 alone cannot be used to assess the condition, and needs to be combined with clinical tumor assessment. Clinical tumor assessment mostly refers to the staging of the patient’s tumor through the TNM system. It involves tumor size, lymph node status and systemic metastasis. Combined with Ki67, it can be used to determine the extent of the disease.