Enlargement of retroperitoneal lymph nodes can be caused by inflammation, tumors, etc. Whether it is treated by ablation or not should be performed as prescribed by the doctor. 1. Lymphadenitis: ablation is not necessary. Acute retroperitoneal lymphadenitis may cause nausea and vomiting, abdominal pain, abdominal distension and other symptoms. Antibiotics such as levofloxacin and cefuroxime may be given intravenously. For chronic retroperitoneal lymphadenitis, antibiotics such as cefadroxil, cefaclor, amoxicillin can be given. 2. Tumor: Tumor of abdominal organs, such as stomach cancer, intestinal cancer, pancreatic cancer and other malignant tumors metastasize to retroperitoneal lymph nodes, which may lead to lymph node enlargement. You can go to the general surgery department of the hospital and combine with the doctor’s opinion to recover through the treatment means of radiofrequency ablation. To summarize, different causes of lymph node enlargement have different treatment methods, and if the enlargement is benign, it can be treated with medication. If the lymph node enlargement is caused by malignant disease, ablation treatment can be considered.