Lymph node metastatic circulation refers to cancer cells transferring to other parts of the body through lymphatic circulation and developing the same tumor in this way, which is the most common way of malignant tumor metastasis, and it is necessary to actively cooperate with doctors for treatment and alleviation of symptoms. When lymph node metastasis occurs in cancer cells, it indicates that it has reached the middle or late stage of the disease. The growth of malignant tumor cells invades into lymphatic vessels and transfers to distant places with lymphatic circulation, which may lead to symptoms such as enlarged lymph nodes, swelling and pain, etc. In clinic, chemotherapy and radiotherapy are often used to control the continuous proliferation of cancer cells, to alleviate the symptoms and to prolong the survival period. After lymph node metastasis occurs, do not have too much psychological pressure, keep your mood relaxed, pay attention to nutritional supplementation, and actively cooperate with doctors for treatment.