To diagnose lymph node diseases, it is recommended to consult general surgery or oncology surgery. 1. General Surgery: Lymph node enlargement is suspected to be inflammation of lymph nodes associated with bacterial infection, and it is recommended to consult the General Surgery Department of regular hospitals for judgment. Lymph node inflammation is mainly manifested as redness, swelling and pain in the lymph nodes. In acute lymph node palpation, lymph node inflammation can be manifested as obvious pressure and pain, and the lymph nodes are not adherent to the surrounding tissues, the activities are relatively good, and the boundaries are clear. 2. Surgical oncology: if you suspect metastatic lymph node enlargement or lymphoma, you need to consult surgical oncology, for example, thyroid malignant tumors are prone to cervical lymph node metastasis, breast malignant tumors are prone to axillary lymph node metastasis. It is recommended to consult the general surgery department of regular hospitals for preliminary diagnosis of the cause of lymph node enlargement.