Children with enlarged abdominal lymph nodes may be caused by pelvic abscess, appendicitis, intestinal obstruction and other diseases, and need symptomatic treatment, including surgery, conservative treatment. 1. Pelvic abscess: Pelvic abscess can cause abdominal lymph node enlargement in children. When pelvic abscess is small and not yet formed, non-surgical treatment can be taken. Antibiotics such as cefaclor can be applied. The treatment is supplemented by abdominal hot compresses and warm saline enemas. For larger abscesses, surgical treatment is required. Under sacral or epidural anesthesia, a lithotomy position is taken. The anterior wall of the rectum is exposed with an anoscope, and a long needle is punctured and drained, and a small incision is made after removing the pus, draining the pus, and placing a rubber tube to drain the pus for 3 to 4 days. 2. Appendicitis: appendicitis can cause abdominal lymph node enlargement in children, appendicitis is generally treated with surgery. If for simple appendicitis, acute appendicitis in the early stages, appropriate medication can be normalized. The main measures include effective antibiotics and rehydration therapy, antibiotics such as amoxicillin and other penicillins. 3. Intestinal obstruction: Intestinal obstruction can also cause abdominal lymph node enlargement in children. Non-surgical treatment includes gastrointestinal decompression, correction of water and electrolyte disorders, acid-base imbalance and so on. Surgical treatment is to lift the obstruction, remove the cause of the disease, intestinal resection and intestinal anastomosis, intestinal short-circuit anastomosis, intestinal stoma, intestinal externalization. If your child develops abdominal lymph node enlargement, do not use medication on your own, you need to seek medical attention as soon as possible to avoid serious complications. The above medications need to be used in accordance with medical advice.