Symptoms of cervical lymph nodes are mainly characterized by localized hard nodules, which vary from condition to condition. The main function of lymph nodes is to filter lymph, remove bacteria and foreign bodies, produce lymphocytes and antibodies and other functions. Lymph nodes in the neck area are rich in tissue, and due to inflammation, malignant lesions or malignant tumor invasion, and reactive hyperplasia, lymph nodes may become enlarged, resulting in the appearance of lymph nodes. 1. Lymphadenitis: caused by bacterial and viral infections, the lymph nodes are enlarged, often accompanied by tenderness, elevated skin temperature, soft texture of lymph nodes and good mobility. In severe cases, localized tissue ulceration may occur. 2. Malignant lesions: malignant tumor lymphatic metastasis, lymphoma, lymphoblastic leukemia and other diseases invade the cervical lymph nodes, these lymph nodes are hard, poor mobility, part of them can be fused with each other, no obvious tenderness, and there is no elevated skin temperature and other manifestations. If you have enlarged lymph nodes in the neck, you should consult a doctor in time, make a clear diagnosis and then follow the doctor’s instructions to carry out the appropriate treatment.