There is no direct relationship between neutrophils and cancer. Neutrophils may increase when cancer is secondary to bacterial infection, and decrease when cancer metastasizes to bone marrow to inhibit hematopoiesis. Neutrophils are one of the types of white blood cells, which have the function of phagocytosis of bacteria and foreign objects, etc. When bacterial infection occurs in the organism, neutrophils may increase, and their phagocytosis is enhanced to avoid the spread of inflammation. Cancer usually refers to malignant tumors of epithelial tissue origin in medicine, such as hepatocellular carcinoma, renal carcinoma, etc. Clinically, there can be jaundice, hematuria and other symptoms related to the primary tumor, and abdominal ultrasound, urinary ultrasound and other examinations can assist in clear diagnosis. Neutrophils are not directly related to cancer. When cancer secondary bacterial infection occurs, white blood cells and neutrophils can be elevated; when cancer metastasizes to bone marrow and inhibits bone marrow hematopoiesis, white blood cells and neutrophils can be lowered. If you find abnormal neutrophils or have symptoms related to cancer, it is recommended to consult the doctor in time, complete the relevant examinations, identify the cause of the disease and treat it in time, so as to avoid the delay of the disease and the adverse consequences.