Whether lymph node pain is caused by fire should be objectively analyzed based on the specific condition of the patient, which can be as follows: First, for patients with lung malignant tumors and breast malignant tumors, if there is swelling and pain in the lymph nodes of superficial tissues, metastatic pain of malignant tumors is mostly considered. At this time, the nature of the lymph node lesion can be clarified by means of fine needle aspiration and lymph node biopsy. If the diagnosis of malignant tumors, it is recommended that the patient as soon as possible to carry out tumor resection lymph node clearance, at this time is not the pain caused by the fire. Second, acute mastitis, acute tonsillitis patients, at this time the lymph node enlargement, mostly considered to be infectious lesions caused by inflammatory lymph node pain. If the patient actively anti-inflammatory treatment of lymph node enlargement and pain can subside on their own, this is not the cause of the fire.