Lymph nodes means that the lymph nodes appear enlarged, and the main causes are related to lymphadenitis, lymphoma and other diseases. 1. Lymphadenitis: it is related to peripheral inflammatory infections, such as mastitis, breast hyperplasia, etc., which is easy to cause axillary lymph nodes; if it occurs in the neck, it should be alerted to be caused by thyroiditis, mumps and other diseases. 2. Lymphoma: including benign and malignant tumors, it may also be caused by malignant tumors in other parts of the body metastasizing through lymph nodes, such as lung cancer, liver cancer, etc. If it is a benign tumor, timely surgery should be performed. If it is a benign tumor, timely surgical resection is enough; if malignant lesions are found, radiotherapy, chemotherapy treatment and other comprehensive treatments need to be carried out. Lymph nodes may also be caused by autoimmune diseases, etc. It is recommended to go to the hospital in time to do relevant examinations to analyze the causes, such as CT examination, pathological biopsy, etc., so as to avoid delaying the condition.