Enlarged lymph nodes with blood flow signals are usually a bad sign, and there may be conditions such as lymphadenitis or lymphoma. The presence of blood flow signals during lymph node examination suggests that the lymph nodes may be surrounded by a rich blood supply, which may be due to inflammatory lesions or malignant lesions, and that malignant tumors in some tissues and organs near the affected area may also cause such conditions. It is recommended that the patient should consult a doctor for examination in time, if it is a benign lesion, such as inflammatory lymph node enlargement, the patient should actively carry out anti-inflammatory treatment, if it is a tumor that causes such symptoms, first of all, we should do a puncture biopsy, to make clear the severity of the tumor, and then we can carry out active and standardized anti-tumor treatment through surgical resection, radiotherapy and other ways.