Malignant tumors without detectable lymph node spread are not necessarily early. Because malignant tumor metastasis has infiltration metastasis, lymphatic metastasis and hematogenous metastasis three ways. The staging of malignant tumors, generally need to observe the size of the primary tumor, the presence of regional lymph node transfer and the presence of distant metastasis and other factors to decide, and can not be a single lymph node metastasis as a criterion for judging the early stage. Malignant tumors are generally staged on the basis of TNM. t may refer to the size of the tumor or the depth of tumor invasion, n may refer to the degree of lymph node metastasis, which can be divided into N0, N1, N2, N0 is the absence of lymphatic metastasis, N1 is the neighboring lymph node metastasis, and N2 will generally refer to mediastinal lymphatic metastasis. m is usually referred to the presence or absence of distant hemorrhagic metastasis. Once the diagnosis of malignant tumor is confirmed, you should go to the hospital in time, improve the examination, understand the state of tumor lesions, standardize the treatment under the guidance of specialists, and review regularly.