Which department to consult for enlarged lymph nodes in children depends on the cause of the enlargement, and can be referred to pediatric internal medicine or pediatric surgery. Enlarged lymph nodes in children may be caused by respiratory tract infections, due to the inflammation of adjacent tissues, the spread of inflammation may produce lymphadenitis, so the symptoms of enlarged lymph nodes can be seen, generally can go to the Department of Pediatric Internal Medicine. Some children’s enlarged lymph nodes may be related to other diseases, such as thrombocytopenic purpura, leukemia, lymphoma and other diseases may also affect the lymph node system, the symptoms of enlarged lymph nodes, you can go to hematology, pediatric surgery and other departments for timely consultation. It is necessary to observe the children’s physical condition in order to avoid complications.