Causes of cervical lymph node enlargement include lymphadenitis, lymph node tuberculosis, lymphoma and lymphatic metastasis of malignant tumors, etc. Different causes of cervical lymph node enlargement will also have different characteristics. 1. Lymphadenitis: If cervical lymphadenitis causes enlarged lymph nodes in the neck, it will manifest as pain in the lymph nodes. It will manifest as lymph node pain. On physical examination, the enlarged lymph nodes will have pressure and pain, good mobility, no fusion, and the surface skin temperature may be elevated. 2. Lymph node tuberculosis: If the swelling of lymph nodes in the neck is caused by lymph node tuberculosis, it is accompanied by symptoms of tuberculosis toxicity such as low fever, emaciation, night sweating, and fatigue. 3. Lymphoma: if the lymphoma invades the neck, the enlarged lymph nodes in the neck will be painlessly enlarged and hard. 4. Lymphatic metastasis of malignant tumors: malignant tumors invade the lymph nodes in the neck and lead to enlargement, these lymph nodes are hard in texture, non-tender, with poor mobility and easy to be fused. Patients with symptoms of enlarged lymph nodes in the neck should go to regular hospitals in time for imaging and laboratory tests to clarify the cause of the disease and then correctly treat it.