The blood routine of lymphoma mainly consists of changes in red blood cells, white blood cells and platelets, and eosinophilia may also occur. In the early stage of lymphoma, platelets and leukocytes may show an increase in value, and there may be chronic anemia, such as a decrease in red blood cells and hemoglobin, while eosinophilia has also been found in patients with early lymphoma. When the lymphoma invades the bone marrow in the advanced stage, there will be the situation of triple reduction, that is to say, the red blood cells, white blood cells and platelets will all be reduced. It should be noted that, in the early stage of lymphoma, when measuring blood routine, the indexes may be normal, and the diagnosis of lymphoma needs to be combined with the patient’s condition and clinical symptoms, such as whether there is fever, night sweating, unexplained weight loss and so on.