CRP and neoplasm: The reasons for this may include several factors: First, each type of tumor has its unique biological markers and behaviors, which may lead to differences in the immune status of patients with different tumors; second, the race and genetics of different patients vary, and each study included patients with inherent differences, different types of surgery, and different postoperative living conditions, all of which can affect the cutoff value for P-CRP in the study; third, the number of patients included in each study is limited, which may also bias the selection of the optimal cutoff point.