Enlarged mesenteric lymph nodes are usually characterized by abdominal pain, bloating, fever, and cough. Enlarged mesenteric lymph nodes are most often seen in children with respiratory infections or adults with intestinal pathology. Its common symptoms include abdominal pain, abdominal distension, fever, cough, and diarrhea, which must be taken seriously. Abdominal ultrasound or abdominal CT examination can be performed, combined with the patient’s clinical symptoms and signs, to make a comprehensive determination. In addition, if it is a series of symptoms caused by inflammation of mesenteric lymph nodes, you can take cefradine, amoxicillin and other drugs to treat, if it is caused by intestinal tumors, you can give surgical resection and lymph node dissection and other methods of treatment. Patients with enlarged mesenteric lymph nodes should complete the examination and follow the doctor’s instructions for standardized treatment after a clear diagnosis.