How long it takes for a child to recover from swollen abdominal lymph nodes cannot be generalized and needs to be judged in relation to the specific etiology. In general, there are two common causes of abdominal lymph node enlargement in children, one is mesenteric lymphadenitis; the other is malignant tumor. Among them, mesenteric lymphadenitis is a common cause of abdominal pain and swollen abdominal lymph nodes in children, which is mostly caused by bacterial and viral infections, and after anti-infection and symptomatic treatment, recovery is usually faster but easy to recur. However, if it is caused by malignant tumors, the problem is more serious and the prognosis is worse. It is generally difficult to recover from swollen abdominal lymph nodes, so it is recommended to seek medical attention in a timely manner, improve relevant examinations to clarify the diagnosis and then actively treat it. If a child finds enlarged lymph nodes in the abdomen, it is recommended that he or she must seek medical attention in a timely manner and seek active treatment after a clear diagnosis. In addition, let the child develop a good daily routine, a balanced diet, and appropriate exercise to improve their immune system, which will also help the recovery of the disease.