The severity of enlarged lymph nodes depends on the causes of enlarged lymph nodes: 1. Some causes of enlarged lymph nodes are self-limiting, such as rubella virus infection leading to cervical lymph node enlargement, which can get better on its own; 2. There are some enlarged lymph nodes that need medication, such as suppurative enlargement of lymph nodes caused by purulent bacteria and changes, which require timely application of antimicrobial drugs; 3, Sometimes localized abscesses of lymph nodes need needle aspiration or surgical incision; 4. Some lymph node enlargement is more serious, which is caused by malignant tumors, such as axillary lymph node enlargement caused by breast cancer, which needs active treatment; 5. Some lymph node enlargement is hematological tumors, such as lymphoma, which should also be actively treated for lymphoma. The same should be done for lymphoma.