Mesenteric lymphadenitis is a common cause of abdominal pain in babies, most common in the right lower abdomen, mostly caused by infection with viruses or bacteria, strenuous exercise, improper diet, etc. It is prone to recurrent attacks, which can occur with fever, vomiting, constipation or diarrhea, seriously affecting the spleen and stomach function of the child, and also easily leading to dysbiosis of intestinal flora. If parents find that the baby has the above symptoms, they should immediately go to the pediatrician, under the guidance of professional doctors, through hydration therapy, adequate rest, medication, surgery and other methods to relieve the disease. 1, hydration therapy: parents temporarily do not give the baby food, you can let the baby supplement some physiological saline or potassium-containing liquid, to avoid dehydration or water electrolyte disorders and other situations; 2, adequate rest: after the disease, the Babies should get enough rest, go to bed early and get up early, avoid strenuous exercise or exertion to promote physical recovery; 3, medication: appropriate analgesic drugs can be used to relieve symptoms, such as acetaminophen, as prescribed by the doctor. If there is bacterial or viral infection, antibiotics and antiviral drugs can be given to treat it. If the diagnosis of tuberculous mesenteric lymphadenitis is confirmed, anti-tuberculosis drugs should be administered. In addition, if the infection is caused by parasites, deworming treatment is needed. 4. Surgery: If the mesenteric lymphadenitis is particularly severe, with severe lymph node enlargement and severe pain, surgical treatment can be considered. During the recovery period, you should try to eat a light diet, you can eat some fruits and vegetables rich in vitamins and dietary fiber, such as oranges, celery, etc. At the same time, do not let the baby eat excessive food to avoid overburdening the gastrointestinal tract. If necessary, you can follow medical advice to eat some probiotics and intestinal flora regulators to improve the gastrointestinal status.