After lymph node puncture, the results need to be evaluated in the following ways: benign or malignant, to determine whether it is a primary or metastatic lesion, and immunohistochemistry. There are many diseases that can occur in the lymph nodes, including benign diseases, such as lymphadenitis, and malignant diseases, such as lymphoma, so when analyzing the results, it is necessary to determine the benign or malignant nature of the disease. Lymph nodes themselves can develop diseases, such as lymphoma, which are primary diseases of lymph nodes, and lymph nodes can also develop metastatic diseases, such as metastatic cancer of lymph nodes, so when judging the results, you need to judge whether it is a primary disease or a metastatic disease. When looking at the result of lymph node puncture, it is also necessary to observe the index of immunohistochemistry, and if it is a malignant disease, it is able to determine the degree of malignancy of the disease.