“The value of C-reactive protein cannot be used as a basis for cancer diagnosis. Although the value of C-reactive protein will be elevated when the organism develops cancer, this indicator alone cannot be used as a basis for cancer diagnosis. C-reactive protein, abbreviated as CRP, is a protein that rises sharply in the plasma when the body is infected or damaged by tissues, which activates complement and enhances phagocytosis to remove pathogenic microorganisms and necrotic and apoptotic tumor cells. When acute bacterial infection, malignant tumor, local ischemia or tissue damage occurs, hepatocytes will synthesize a large amount of C-reactive protein into the blood, making it rise sharply within a few hours, so it is a sensitive indicator reflecting the inflammation status of the body, especially in acute bacterial infection when C-reactive protein rises significantly. In summary, it can be seen that C-reactive protein can only be used as an indicator for preliminary judgment and cannot be used as a basis for confirming the diagnosis of a certain disease. If cancer is suspected to be present, relevant tests should be performed to clarify the diagnosis according to the difference of clinical symptoms and signs.”